American Civil War

The American Civil War (1861–1865), also known as the War Between the States and several other names, was a civil war in the United States of America. Eleven Southern slave states declared their secession from the U.S. and formed the Confederate States of America (the Confederacy). Led by Jefferson Davis, they fought against the U.S. federal government (the Union), which was supported by all the free states and the five border slave states in the north.

In the presidential election of 1860, the Republican Party, led by Abraham Lincoln, had campaigned against the expansion of slavery beyond the states in which it already existed. The Republican victory in that election resulted in seven Southern states declaring their secession from the Union even before Lincoln took office on March 4, 1861. Both the outgoing and incoming U.S. administrations rejected secession, considering it rebellion.

Hostilities began on April 12, 1861, when Confederate forces attacked a U.S. military installation at Fort Sumter in South Carolina. Lincoln responded by calling for a volunteer army from each state, leading to declarations of secession by four more Southern slave states. Both sides raised armies as the Union assumed control of the border states early in the war and established a naval blockade. In September 1862, Lincoln's Emancipation Proclamation made ending slavery in the South a war goal, and dissuaded the British from intervening. Confederate commander Robert E. Lee won battles in the east, but in 1863 his northward advance was turned back at Gettysburg and, in the west, the Union gained control of the Mississippi River at the Battle of Vicksburg, thereby splitting the Confederacy. Long-term Union advantages in men and material were realized in 1864 when Ulysses S. Grant fought battles of attrition against Lee, while Union general William Sherman captured Atlanta, Georgia, and marched to the sea. Confederate resistance collapsed after Lee surrendered to Grant at Appomattox Court House on April 9, 1865.

The American Civil War was the deadliest war in American history, causing 620,000 soldier deaths and an undetermined number of civilian casualties. Its legacy includes ending slavery in the United States, restoring the Union, and strengthening the role of the federal government. The social, political, economic and racial issues of the war decisively shaped the reconstruction era that lasted to 1877, and brought changes that helped make the country a united superpower.

Causes of secession
The coexistence of a slave-owning South with an increasingly anti-slavery North made conflict likely, if not inevitable. Lincoln did not propose federal laws against slavery where it already existed, but he had, in his 1858 House Divided Speech, expressed a desire to "arrest the further spread of it, and place it where the public mind shall rest in the belief that it is in the course of ultimate extinction." Much of the political battle in the 1850s focused on the expansion of slavery into the newly created territories. All of the organized territories were likely to become free-soil states, which increased the Southern movement toward secession. Both North and South assumed that if slavery could not expand it would wither and die.

Southern fears of losing control of the federal government to antislavery forces, and Northern resentment of the influence that the Slave Power already wielded in government, brought the crisis to a head in the late 1850s. Sectional disagreements over the morality of slavery, the scope of democracy and the economic merits of free labor vs. slave plantations caused the Whig and "Know-Nothing" parties to collapse, and new ones to arise (the Free Soil Party in 1848, the Republicans in 1854, the Constitutional Union in 1860). In 1860, the last remaining national political party, the Democratic Party, split along sectional lines.

Both North and South were influenced by the ideas of Thomas Jefferson. Southerners emphasized, in connection with slavery, the states' rights  ideas mentioned in Jefferson's Kentucky Resolutions. Northerners ranging from the abolitionist William Lloyd Garrison to the moderate Republican leader Abraham Lincoln emphasized Jefferson's declaration that all men are created equal. Lincoln mentioned this proposition in his Gettysburg Address.

Confederate Vice President Alexander Stephens said From Alexander Stephens' Cornerstone Speech, March 21, 1861, The Athenaeum, Savannah Georgia - 'The new constitution has put at rest, forever, all the agitating questions relating to our peculiar institution -- African slavery as it exists amongst us -- the proper status of the negro in our form of civilization. This was the immediate cause of the late rupture and present revolution. Jefferson in his forecast, had anticipated this, as the "rock upon which the old Union would split." He was right. What was conjecture with him, is now a realized fact. But whether he fully comprehended the great truth upon which that rock stood and stands, may be doubted. The prevailing ideas entertained by him and most of the leading statesmen at the time of the formation of the old constitution, were that the enslavement of the African was in violation of the laws of nature; that it was wrong in principle, socially, morally, and politically. It was an evil they knew not well how to deal with, but the general opinion of the men of that day was that, somehow or other in the order of Providence, the institution would be evanescent and pass away. This idea, though not incorporated in the constitution, was the prevailing idea at that time. The constitution, it is true, secured every essential guarantee to the institution while it should last, and hence no argument can be justly urged against the constitutional guarantees thus secured, because of the common sentiment of the day. Those ideas, however, were fundamentally wrong. They rested upon the assumption of the equality of races. This was an error. It was a sandy foundation, and the government built upon it fell when the "storm came and the wind blew."

Our new government is founded upon exactly the opposite idea; its foundations are laid, its corner- stone rests upon the great truth, that the negro is not equal to the white man; that slavery -- subordination to the superior race -- is his natural and normal condition. [Applause.] ' that slavery was the chief cause of secession in his Cornerstone Speech shortly before the war. After Confederate defeat, Stephens became one of the most ardent defenders of the Lost Cause. There was a striking contrast between Stephens' post-war states' rights assertion that slavery did not cause secession and his pre-war Cornerstone Speech. Confederate President Jefferson Davis also switched from saying the war was caused by slavery to saying that states' rights was the cause. While Southerners often used states' rights arguments to defend slavery, sometimes roles were reversed, as when Southerners demanded national laws to defend their interests with the Gag Rule and the Fugitive Slave Law of 1850. On these issues, it was Northerners who wanted to defend the rights of their states.

Almost all of the inter-regional crises involved slavery, starting with debates on the three-fifths clause and a twenty year extension of the African slave trade in the Constitutional Convention of 1787. There was controversy over adding the slave state of Missouri to the Union that led to the Missouri Compromise of 1820, the Nullification Crisis over the Tariff of 1828 (although the tariff was low after 1846, and even the tariff issue was related to slavery),  the gag rule that prevented discussion in Congress of petitions for ending slavery from 1835–1844, the acquisition of Texas as a slave state in 1845 and Manifest Destiny as an argument for gaining new territories where slavery would become an issue after the Mexican–American War (1846–1848), which resulted in the Compromise of 1850. The Wilmot Proviso was an attempt by Northern politicians to exclude slavery from the territories conquered from Mexico. The extremely popular antislavery novel Uncle Tom’s Cabin (1852) by Harriet Beecher Stowe greatly increased Northern opposition to the Fugitive Slave Law of 1850.

The 1854 Ostend Manifesto was an unsuccessful Southern attempt to annex Cuba as a slave state. The Second Party System broke down after passage of the Kansas-Nebraska Act in 1854, which replaced the Missouri Compromise ban on slavery with popular sovereignty, allowing the people of a territory to vote for or against slavery. The Bleeding Kansas controversy over the status of slavery in the Kansas Territory included massive vote fraud perpetrated by Missouri pro-slavery Border Ruffians. Vote fraud led pro-South Presidents Franklin Pierce and James Buchanan to make attempts (including support for the pro-slavery Lecompton Constitution) to admit Kansas as a slave state. Violence over the status of slavery in Kansas erupted with the Wakarusa War, the Sacking of Lawrence, the caning of Republican Charles Sumner by the Southerner Preston Brooks, the Pottawatomie Massacre, the Battle of Black Jack, the Battle of Osawatomie and the Marais des Cygnes massacre. The 1857 Supreme Court Dred Scott decision allowed slavery in the territories even where the majority opposed slavery, including Kansas. The Lincoln-Douglas debates of 1858 included Northern Democratic leader Stephen A. Douglas' Freeport Doctrine. This doctrine was an argument for thwarting the Dred Scott decision which, along with Douglas' defeat of the Lecompton Constitution, divided the Democratic Party between North and South. Northern abolitionist John Brown's raid at Harpers Ferry Armory was an attempt to incite slave insurrections in 1859. The North-South split in the Democratic Party in 1860 due to the Southern demand for a slave code for the territories completed polarization of the nation between North and South.

Other factors include sectionalism (caused by the growth of slavery in the lower South while slavery was gradually phased out in Northern states) and economic differences between North and South, although most modern historians disagree with the extreme economic determinism of historian Charles Beard and argue that Northern and Southern economies were largely complementary. There was the polarizing effect of slavery that split the largest religious denominations (the Methodist, Baptist and Presbyterian churches) and controversy caused by the worst cruelties of slavery (whippings, mutilations and families split apart). The fact that seven immigrants out of eight settled in the North, plus the fact that twice as many whites left the South for the North as vice versa, contributed to the South's defensive-aggressive political behavior.

The election of Lincoln in 1860 was the final trigger for secession. Efforts at compromise, including the "Corwin Amendment" and the "Crittenden Compromise", failed.

Southern leaders feared that Lincoln would stop the expansion of slavery and put it on a course toward extinction. The slave states, which had already become a minority in the House of Representatives, were now facing a future as a perpetual minority in the Senate and Electoral College against an increasingly powerful North.

Slavery


Support for secession was strongly correlated to the number of plantations in the region; states of the deep South which had the greatest concentration of plantations were the first to secede. The upper South slave states of Virginia, North Carolina, Arkansas, and Tennessee had fewer plantations and rejected secession until the Fort Sumter crisis forced them to choose sides. Border states had fewer plantations still and never seceded. As of 1850 the percentage of Southern whites living in families that owned slaves was 43 percent in the lower South, 36 percent in the upper South and 22 percent in the border states that fought mostly for the Union. 85 percent of slaveowners who owned 100 or more slaves lived in the lower South, as opposed to one percent in the border states. Ninety-five percent of blacks lived in the South, comprising one third of the population there as opposed to one percent of the population of the North. Consequently, fears of eventual emancipation were much greater in the South than in the North.

The Supreme Court decision of 1857 in Dred Scott v. Sandford added to the controversy. Chief Justice Roger B. Taney's decision said that slaves were "so far inferior that they had no rights which the white man was bound to respect", and that slavery could spread into the territories. Lincoln warned that "the next Dred Scott decision" could threaten Northern states with slavery.

Abraham Lincoln said, "this question of Slavery was more important than any other; indeed, so much more important has it become that no other national question can even get a hearing just at present." The slavery issue was related to sectional competition for control of the territories, and the Southern demand for a slave code for the territories was the issue used by Southern politicians to split the Democratic Party in two, which all but guaranteed the election of Lincoln and secession. When secession was an issue, South Carolina planter and state Senator John Townsend said that "our enemies are about to take possession of the Government, that they intend to rule us according to the caprices of their fanatical theories, and according to the declared purposes of abolishing slavery." Similar opinions were expressed throughout the South in editorials, political speeches and declarations of reasons for secession. Even though Lincoln had no plans to outlaw slavery where it existed, Southerners throughout the South expressed fears for the future of slavery.

Southern concerns included not only economic loss but also fears of racial equality. The Texas Declaration of Causes for Secession said that the non-slave-holding states were "proclaiming the debasing doctrine of equality of all men, irrespective of race or color", and that the African race "were rightfully held and regarded as an inferior and dependent race". Alabama secessionist E. S. Dargan warned that whites and free blacks could not live together; if slaves were emancipated and remained in the South, "we ourselves would become the executioners of our own slaves. To this extent would the policy of our Northern enemies drive us; and thus would we not only be reduced to poverty, but what is still worse, we should be driven to crime, to the commission of sin."

Beginning in the 1830s, the U.S. Postmaster General refused to allow mail which carried abolition pamphlets to the South. Northern teachers suspected of any tinge of abolitionism were expelled from the South, and abolitionist literature was banned. Southerners rejected the denials of Republicans that they were abolitionists. The North felt threatened as well, for as Eric Foner concludes, "Northerners came to view slavery as the very antithesis of the good society, as well as a threat to their own fundamental values and interests."

Over the 1850s slaves left the border states through sale, manumission and escape, and border states also had more free blacks and European immigrants than the lower South, which increased Southern fears that slavery was threatened with rapid extinction in this area. Such fears greatly increased Southern efforts to make Kansas a slave state. By 1860 the number of white border state families owning slaves plunged to only 16 percent of the total. Slaves sold to lower South states were owned by a smaller number of wealthy slave owners as the price of slaves increased.

Even though Lincoln agreed to the Corwin Amendment, which would have protected slavery in existing states, secessionists claimed that such guarantees were meaningless. In addition to the loss of Kansas to free soil Northerners, secessionists feared that the loss of slaves in the border states would lead to emancipation, and that upper South slave states might be the next dominoes to fall. They feared that Republicans would use patronage to incite slaves and antislavery Southern whites such as Hinton Rowan Helper. Then slavery in the lower South, like a "scorpion encircled by fire, would sting itself to death." A few secessionists mentioned the tariff issue in addition to slavery, but these were rare. Among other reasons, slavery represented much more money than the tariff. However, a few libertarian economists place more importance on the tariff issue.

Non-slavery related causes of secession do exist, but have little to do with tariffs or states' rights.

Secession of South Carolina
South Carolina did more to advance nullification and secession than any other Southern state. South Carolina adopted the "Declaration of the Immediate Causes Which Induce and Justify the Secession of South Carolina from the Federal Union" on December 24, 1860. It argued for states' rights for slave owners in the South, but contained a complaint about states' rights in the North in the form of opposition to the Fugitive Slave Act, claiming that Northern states were not fulfilling their federal obligations under the Constitution. All of the alleged violations of the rights of Southern states were related to slavery.

Secession winter
Before Lincoln took office, seven states had declared their secession from the Union. They established a Southern government, the Confederate States of America on February 4, 1861. They took control of federal forts and other properties within their boundaries with little resistance from outgoing President James Buchanan, whose term ended on March 4, 1861. Buchanan said that the Dred Scott decision was proof that the South had no reason for secession, and that the Union "was intended to be perpetual", but that "the power by force of arms to compel a State to remain in the Union" was not among the "enumerated powers granted to Congress". One quarter of the U.S. Army—the entire garrison in Texas—was surrendered to state forces by its commanding general, David E. Twiggs, who then joined the Confederacy.

As Southerners resigned their seats in the Senate and the House, secession later enabled Republicans to pass bills for projects that had been blocked by Southern Senators before the war, including the Morrill Tariff, land grant colleges (the Morill Act), a Homestead Act, a trans-continental railroad (the Pacific Railway Acts), the National Banking Act and the authorization of United States Notes by the Legal Tender Act of 1862. The Revenue Act of 1861 introduced the income tax to help finance the war.

The Confederacy
Seven Deep South cotton states seceded by February 1861, starting with South Carolina, Mississippi, Florida, Alabama, Georgia, Louisiana, and Texas. These seven states formed the Confederate States of America (February 4, 1861), with Jefferson Davis as president, and a governmental structure closely modeled on the U.S. Constitution. Following the attack on Fort Sumter, President Lincoln called for a volunteer army from each state. Within two months, four more Southern slave states declared their secession and joined the Confederacy: Virginia, Arkansas, North Carolina and Tennessee. The northwestern portion of Virginia subsequently seceded from Virginia, joining the Union as the new state of West Virginia on June 20, 1863. By the end of 1861, Missouri and Kentucky were divided— each of them having a pro-Southern and pro-Northern government.

The Union states
Twenty-three states remained loyal to the Union: California, Connecticut, Delaware, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Oregon, Pennsylvania, Rhode Island, Vermont, and Wisconsin. During the war, Nevada and West Virginia joined as new states of the Union. Tennessee and Louisiana were returned to Union military control early in the war.

The territories of Colorado, Dakota, Nebraska, Nevada, New Mexico, Utah, and Washington fought on the Union side. Several slave-holding Native American tribes supported the Confederacy, giving the Indian territory (now Oklahoma) a small bloody civil war.

Border states
The border states in the Union were West Virginia (which was separated from Virginia and became a new state), and four of the five northernmost slave states (Maryland, Delaware, Missouri, and Kentucky).

Maryland had numerous pro-Confederate officials who tolerated anti-Union rioting in Baltimore and the burning of bridges. Lincoln responded with martial law and called for troops. Militia units that had been drilling in the North rushed toward Washington and Baltimore. Before the Confederate government realized what was happening, Lincoln had seized firm control of Maryland (and the separate District of Columbia), by arresting all the Maryland government members and holding them without trial.

In Missouri, an elected convention on secession voted decisively to remain within the Union. When pro-Confederate Governor Claiborne F. Jackson called out the state militia, it was attacked by federal forces under General Nathaniel Lyon. After the Camp Jackson Affair Lyon chased the governor and the rest of the State Guard to the southwestern corner of the state. (See also: Missouri secession). In the resulting vacuum, the convention on secession reconvened and took power as the Unionist provisional government of Missouri.

Kentucky did not secede; for a time, it declared itself neutral. When Confederate forces entered the state in September, 1861, neutrality ended and the state reaffirmed its loyal status, while trying to maintain slavery. During a brief invasion by Confederate forces, Confederate sympathizers organized a secession convention, inaugurated a governor, and gained recognition from the Confederacy. The rebel government soon went into exile and never controlled Kentucky.

After Virginia's secession, a Unionist government in Wheeling asked a total of 48 counties to vote on an ordinance to create a new state on October 24, 1861. Returns were received from 41 of the 48 counties, and a minority turnout voted heavily in favor of the new state, at first called "Kanawha" but later renamed "West Virginia", which was admitted to the Union on June 20, 1863. Jefferson and Berkeley counties were annexed to the new state in late 1863. The western counties of Virginia had voted nearly 2 to 1 against secession, though 24 of the 50 counties had voted for secession. Soldier numbers from West Virginia were about evenly divided between the Confederacy and the Union.

Similar Unionist secessions attempts appeared in East Tennessee, but were suppressed by the Confederacy. Jefferson Davis arrested over 3000 men suspected of being loyal to the Union and held them without trial.

Overview


Over 10,000 military engagements took place during the war, 40% of them in Virginia and Tennessee. Since separate articles deal with every major battle and many minor ones, this article only gives the broadest outline. For more information see List of American Civil War battles and Military leadership in the American Civil War.

The war begins
Lincoln's victory in the presidential election of 1860 triggered South Carolina's declaration of secession from the Union. By February 1861, six more Southern states made similar declarations. On February 7, the seven states adopted a provisional constitution for the Confederate States of America and established their temporary capital at Montgomery, Alabama. A pre-war February Peace Conference of 1861 met in Washington in a failed attempt at resolving the crisis. The remaining eight slave states rejected pleas to join the Confederacy. Confederate forces seized most of the federal forts within their boundaries. President Buchanan protested but made no military response aside from a failed attempt to resupply Fort Sumter via the ship Star of the West, which was fired upon by South Carolina forces and turned back before it reached the fort. However, governors in Massachusetts, New York, and Pennsylvania quietly began buying weapons and training militia units.

On March 4, 1861, Abraham Lincoln was sworn in as President. In his inaugural address, he argued that the Constitution was a more perfect union than the earlier Articles of Confederation and Perpetual Union, that it was a binding contract, and called any secession "legally void". He stated he had no intent to invade Southern states, nor did he intend to end slavery where it existed, but that he would use force to maintain possession of federal property. His speech closed with a plea for restoration of the bonds of union.

The South sent delegations to Washington and offered to pay for the federal properties and enter into a peace treaty with the United States. Lincoln rejected any negotiations with Confederate agents on the grounds that the Confederacy was not a legitimate government, and that making any treaty with it would be tantamount to recognition of it as a sovereign government. However, Secretary of State William Seward engaged in unauthorized and indirect negotiations that failed.

Fort Sumter in Charleston, South Carolina, Fort Pickens and Fort Taylor were the remaining Union-held forts in the Confederacy, and Lincoln was determined to hold Fort Sumter. Under orders from Confederate President Jefferson Davis, troops controlled by the Confederate government under P. G. T. Beauregard bombarded the fort with artillery on April 12, forcing the fort's capitulation. Northerners rallied behind Lincoln's call for all of the states to send troops to recapture the forts and to preserve the Union. With the scale of the rebellion apparently small so far, Lincoln called for 75,000 volunteers for 90 days. For months before that, several Northern governors had discreetly readied their state militias; they began to move forces the next day. Liberty Arsenal in Liberty, Missouri was seized eight days after Fort Sumter.

Four states in the upper South (Tennessee, Arkansas, North Carolina, and Virginia), which had repeatedly rejected Confederate overtures, now refused to send forces against their neighbors, declared their secession, and joined the Confederacy. To reward Virginia, the Confederate capital was moved to Richmond. The city was the symbol of the Confederacy. Richmond was in a highly vulnerable location at the end of a tortuous Confederate supply line. Although Richmond was heavily fortified, supplies for the city would be reduced by Sherman's capture of Atlanta and cut off almost entirely when Grant besieged Petersburg and its railroads that supplied the Southern capital.

Anaconda Plan and blockade, 1861


Winfield Scott, the commanding general of the U.S. Army, devised the Anaconda Plan to win the war with as little bloodshed as possible. His idea was that a Union blockade of the main ports would weaken the Confederate economy; then the capture of the Mississippi River would split the South. Lincoln adopted the plan, but overruled Scott's warnings against an immediate attack on Richmond.

In May 1861, Lincoln enacted the Union blockade of all Southern ports, ending regular international shipments to the Confederacy. When violators' ships and cargoes were seized, they were sold and the proceeds given to Union sailors, but the British crews were released. By late 1861, the blockade stopped most local port-to-port traffic. The blockade shut down King Cotton, ruining the Southern economy. British investors built small, fast "blockade runners" that traded arms and luxuries brought in from Bermuda, Cuba and the Bahamas in return for high-priced cotton and tobacco. Shortages of food and other goods triggered by the blockade, foraging by Northern armies, and the impressment of crops by Confederate armies combined to cause hyperinflation and bread riots in the South.

On March 8, 1862, the Confederate Navy waged a fight against the Union Navy when the ironclad CSS Virginia attacked the blockade; against wooden ships she seemed unstoppable but the next day she had to fight the new Union warship USS Monitor in the Battle of the Ironclads. The battle ended in a draw, which was a strategic victory for the Union in that the blockade was sustained. The Confederacy lost the Virginia when the ship was scuttled to prevent capture, and the Union built many copies of Monitor. Lacking the technology to build effective warships, the Confederacy attempted to obtain warships from Britain. The Union victory at the Second Battle of Fort Fisher in January 1865 closed the last useful Southern port and virtually ended blockade running.

Eastern Theater 1861–1863


Because of the fierce resistance of a few initial Confederate forces at Manassas, Virginia, in July 1861, a march by Union troops under the command of Maj. Gen. Irvin McDowell on the Confederate forces there was halted in the First Battle of Bull Run, or First Manassas, whereupon they were forced back to Washington, D.C., by Confederate troops under the command of Generals Joseph E. Johnston and P. G. T. Beauregard. It was in this battle that Confederate General Thomas Jackson received the nickname of "Stonewall" because he stood like a stone wall against Union troops. Alarmed at the loss, and in an attempt to prevent more slave states from leaving the Union, the U.S. Congress passed the Crittenden-Johnson Resolution on July 25 of that year, which stated that the war was being fought to preserve the Union and not to end slavery.

Maj. Gen. George B. McClellan took command of the Union Army of the Potomac on July 26 (he was briefly general-in-chief of all the Union armies, but was subsequently relieved of that post in favor of Maj. Gen. Henry W. Halleck), and the war began in earnest in 1862. Upon the strong urging of President Lincoln to begin offensive operations, McClellan attacked Virginia in the spring of 1862 by way of the peninsula between the York River and James River, southeast of Richmond. Although McClellan's army reached the gates of Richmond in the Peninsula Campaign,  Johnston halted his advance at the Battle of Seven Pines, then General Robert E. Lee and top subordinates James Longstreet and Stonewall Jackson defeated McClellan in the Seven Days Battles and forced his retreat. The Northern Virginia Campaign, which included the Second Battle of Bull Run, ended in yet another victory for the South. McClellan resisted General-in-Chief Halleck's orders to send reinforcements to John Pope's Union Army of Virginia, which made it easier for Lee's Confederates to defeat twice the number of combined enemy troops.

Emboldened by Second Bull Run, the Confederacy made its first invasion of the North, when General Lee led 45,000 men of the Army of Northern Virginia across the Potomac River into Maryland on September 5. Lincoln then restored Pope's troops to McClellan. McClellan and Lee fought at the Battle of Antietam near Sharpsburg, Maryland, on September 17, 1862, the bloodiest single day in United States military history. Lee's army, checked at last, returned to Virginia before McClellan could destroy it. Antietam is considered a Union victory because it halted Lee's invasion of the North and provided an opportunity for Lincoln to announce his Emancipation Proclamation. When the cautious McClellan failed to follow up on Antietam, he was replaced by Maj. Gen. Ambrose Burnside. Burnside was soon defeated at the Battle of Fredericksburg on December 13, 1862, when over twelve thousand Union soldiers were killed or wounded during repeated futile frontal assaults against Marye's Heights. After the battle, Burnside was replaced by Maj. Gen. Joseph Hooker. Hooker, too, proved unable to defeat Lee's army; despite outnumbering the Confederates by more than two to one, he was humiliated in the Battle of Chancellorsville in May 1863. He was replaced by Maj. Gen. George Meade during Lee's second invasion of the North, in June. Meade defeated Lee at the Battle of Gettysburg (July 1 to July 3, 1863), the bloodiest battle of the war, which is sometimes considered the war's turning point. Pickett's Charge on July 3 is often recalled as the high-water mark of the Confederacy, not just because it signaled the end of Lee's plan to pressure Washington from the north, but also because Vicksburg, Mississippi, the key stronghold to control of the Mississippi, fell the following day. Lee's army suffered 28,000 casualties (versus Meade's 23,000). However, Lincoln was angry that Meade failed to intercept Lee's retreat, and after Meade's inconclusive fall campaign, Lincoln decided to turn to the Western Theater for new leadership.

Western Theater 1861–1863
While the Confederate forces had numerous successes in the Eastern theater, they were defeated many times in the West. They were driven from Missouri early in the war as a result of the Battle of Pea Ridge. Leonidas Polk's invasion of Columbus, Kentucky ended Kentucky's policy of neutrality and turned that state against the Confederacy. Nashville and central Tennessee fell to the Union early in 1862, leading to attrition of local food supplies and livestock and a breakdown in social organization.

Most of the Mississippi was opened to Union traffic with the taking of Island No. 10 and New Madrid, Missouri, and then Memphis, Tennessee. In May 1862 the Union Navy captured New Orleans without a major fight, which allowed Union forces to begin moving up the Mississippi. Only the fortress city of Vicksburg, Mississippi, prevented Union control of the entire river.

General Braxton Bragg's second Confederate invasion of Kentucky ended with a meaningless victory over Maj. Gen. Don Carlos Buell at the Battle of Perryville, although Bragg was forced to end his attempt at liberating Kentucky and retreat due to lack of support for the Confederacy in that state. Bragg was narrowly defeated by Maj. Gen. William Rosecrans at the Battle of Stones River in Tennessee.

The one clear Confederate victory in the West was the Battle of Chickamauga. Bragg, reinforced by Lt. Gen. James Longstreet's corps (from Lee's army in the east), defeated Rosecrans, despite the heroic defensive stand of Maj. Gen. George Henry Thomas. Rosecrans retreated to Chattanooga, which Bragg then besieged.

The Union's key strategist and tactician in the West was Ulysses S. Grant, who won victories at Forts Henry and Donelson (by which the Union seized control of the Tennessee and Cumberland Rivers); the Battle of Shiloh; and the Battle of Vicksburg, which cemented Union control of the Mississippi River and is considered one of the turning points of the war. Grant marched to the relief of Rosecrans and defeated Bragg at the Third Battle of Chattanooga, driving Confederate forces out of Tennessee and opening a route to Atlanta and the heart of the Confederacy.

Trans-Mississippi Theater 1861–1865
Guerrilla activity turned much of Missouri into a battleground. Missouri had, in total, the third-most battles of any state during the war. The other states of the west, though geographically isolated from the battles to the east, saw numerous small-scale military actions. Battles in the region served to secure Missouri, Indian Territory, and New Mexico Territory for the Union. Confederate incursions into New Mexico territory were repulsed in 1862 and a Union campaign to secure Indian Territory succeeded in 1863. Late in the war, the Union's Red River Campaign was a failure. Texas remained in Confederate hands throughout the war, but was cut off from the rest of the Confederacy after the capture of Vicksburg in 1863 gave the Union control of the Mississippi River.

End of the war 1864–1865


At the beginning of 1864, Lincoln made Grant commander of all Union armies. Grant made his headquarters with the Army of the Potomac, and put Maj. Gen. William Tecumseh Sherman in command of most of the western armies. Grant understood the concept of total war and believed, along with Lincoln and Sherman, that only the utter defeat of Confederate forces and their economic base would bring an end to the war. This was total war not in terms of killing civilians but rather in terms of destroying homes, farms, and railroads. Grant devised a coordinated strategy that would strike at the entire Confederacy from multiple directions: Generals George Meade and Benjamin Butler were ordered to move against Lee near Richmond; General Franz Sigel (and later Philip Sheridan) were to attack the Shenandoah Valley; General Sherman was to capture Atlanta and march to the sea (the Atlantic Ocean); Generals George Crook and William W. Averell were to operate against railroad supply lines in West Virginia; and Maj. Gen. Nathaniel P. Banks was to capture Mobile, Alabama.

Union forces in the East attempted to maneuver past Lee and fought several battles during that phase ("Grant's Overland Campaign") of the Eastern campaign. Grant's battles of attrition at the Wilderness, Spotsylvania, and Cold Harbor resulted in heavy Union losses, but forced Lee's Confederates to fall back again and again. An attempt to outflank Lee from the south failed under Butler, who was trapped inside the Bermuda Hundred river bend. Grant was tenacious and, despite astonishing losses (over 65,000 casualties in seven weeks), kept pressing Lee's Army of Northern Virginia back to Richmond. He pinned down the Confederate army in the Siege of Petersburg, where the two armies engaged in trench warfare for over nine months.

Grant finally found a commander, General Philip Sheridan, aggressive enough to prevail in the Valley Campaigns of 1864. Sheridan defeated Maj. Gen. Jubal A. Early in a series of battles, including a final decisive defeat at the Battle of Cedar Creek. Sheridan then proceeded to destroy the agricultural base of the Shenandoah Valley, a strategy similar to the tactics Sherman later employed in Georgia.

Meanwhile, Sherman marched from Chattanooga to Atlanta, defeating Confederate Generals Joseph E. Johnston and John Bell Hood along the way. The fall of Atlanta, on September 2, 1864, was a significant factor in the reelection of Lincoln as president. Hood left the Atlanta area to menace Sherman's supply lines and invade Tennessee in the Franklin-Nashville Campaign. Union Maj. Gen. John M. Schofield defeated Hood at the Battle of Franklin, and George H. Thomas dealt Hood a massive defeat at the Battle of Nashville, effectively destroying Hood's army.

Leaving Atlanta, and his base of supplies, Sherman's army marched with an unknown destination, laying waste to about 20% of the farms in Georgia in his "March to the Sea". He reached the Atlantic Ocean at Savannah, Georgia in December 1864. Sherman's army was followed by thousands of freed slaves; there were no major battles along the March. Sherman turned north through South Carolina and North Carolina to approach the Confederate Virginia lines from the south, increasing the pressure on Lee's army.

Lee's army, thinned by desertion and casualties, was now much smaller than Grant's. Union forces won a decisive victory at the Battle of Five Forks on April 1, forcing Lee to evacuate Petersburg and Richmond. The Confederate capital fell to the Union XXV Corps, composed of black troops. The remaining Confederate units fled west and after a defeat at Sayler's Creek, it became clear to Robert E. Lee that continued fighting against the United States was both tactically and logistically impossible.

Confederate Surrenders
Lee surrendered his Army of Northern Virginia on April 9, 1865, at the McLean House in the village of Appomattox Court House. In an untraditional gesture and as a sign of Grant's respect and anticipation of peacefully folding the Confederacy back into the Union, Lee was permitted to keep his officer's saber and his horse, Traveller. On April 14, 1865, President Lincoln was shot. Lincoln died early the next morning, and Andrew Johnson became President.

Events leading to Lee's surrender began with the capture of key Confederate officers Richard S. Ewell and Richard H. Anderson on April 6, following Confederate defeat at the battle of Sayler's Creek. On April 8 Union cavalry under Major General George Armstrong Custer destroyed three trains of Confederate supplies at Appomattox Station, leading to the surrender of General Lee the next day. General St. John Richardson Liddell's army surrendered after the loss of the Confederate fortifications at the Battle of Spanish Fort in Alabama, also on April 9.

On April 21 John S. Mosby’s raiders of the 43rd Battalion Virginia Cavalry disbanded and on April 26 General Joseph E. Johnston surrendered his troops to Sherman at Bennett Place in Durham, North Carolina. Surrendering on May 4 and 5 were the Confederate departments of Alabama, Mississippi and East Louisiana regiments and the District of the Gulf. The Confederate President was captured on May 10 and the surrender of the Department of Florida and South Georgia happened the same day. Confederate Brigadier General "Jeff" Meriwether Thompson surrendered his brigade the next day and the day following saw the surrender of the Confederate forces of North Georgia.

On June 23, 1865, at Fort Towson in the Choctaw Nations' area of the Oklahoma Territory, Stand Watie signed a cease-fire agreement with Union representatives, becoming the last Confederate general in the field to stand down. The last Confederate ship to surrender was the CSS Shenandoah, on November 6, 1865, in Liverpool, England. These surrenders marked the conclusion of the American Civil War.

Slavery during the war
At the beginning of the war some Union commanders thought they were supposed to return escaped slaves to their masters. By 1862, when it became clear that this would be a long war, the question of what to do about slavery became more general. The Southern economy and military effort depended on slave labor. It began to seem unreasonable to protect slavery while blockading Southern commerce and destroying Southern production. As one Congressman put it, the slaves "...cannot be neutral. As laborers, if not as soldiers, they will be allies of the rebels, or of the Union." The same Congressman—and his fellow Radical Republicans—put pressure on Lincoln to rapidly emancipate the slaves, whereas moderate Republicans came to accept gradual, compensated emancipation and colonization. Copperheads, the border states and War Democrats opposed emancipation, although the border states and War Democrats eventually accepted it as part of total war needed to save the Union.

In 1861, Lincoln expressed the fear that premature attempts at emancipation would mean the loss of the border states, and that "to lose Kentucky is nearly the same as to lose the whole game." At first, Lincoln reversed attempts at emancipation by Secretary of War Simon Cameron and Generals John C. Frémont (in Missouri) and David Hunter (in South Carolina, Georgia and Florida) in order to keep the loyalty of the border states and the War Democrats.

Lincoln warned the border states that a more radical type of emancipation would happen if his gradual plan based on compensated emancipation and voluntary colonization was rejected. Only the District of Columbia accepted Lincoln's gradual plan, and Lincoln mentioned his Emancipation Proclamation to members of his cabinet on July 21, 1862. Secretary of State William H. Seward told Lincoln to wait for a victory before issuing the proclamation, as to do otherwise would seem like "our last shriek on the retreat". In September 1862 the Battle of Antietam provided this opportunity, and the subsequent War Governors' Conference added support for the proclamation. Lincoln had already published a letter encouraging the border states especially to accept emancipation as necessary to save the Union. Lincoln later said that slavery was "somehow the cause of the war". Lincoln issued his preliminary Emancipation Proclamation on September 22, 1862, and his final Emancipation Proclamation on January 1, 1863. In his letter to Hodges, Lincoln explained his belief that "If slavery is not wrong, nothing is wrong ... And yet I have never understood that the Presidency conferred upon me an unrestricted right to act officially upon this judgment and feeling ... I claim not to have controlled events, but confess plainly that events have controlled me."

Since the Emancipation Proclamation was based on the President's war powers, it only included territory held by Confederates at the time. However, the Proclamation became a symbol of the Union's growing commitment to add emancipation to the Union's definition of liberty. Lincoln also played a leading role in getting Congress to vote for the Thirteenth Amendment, which made emancipation universal and permanent.

Enslaved African Americans did not wait for Lincoln's action before escaping and seeking freedom behind Union lines. From early years of the war, hundreds of thousands of African Americans escaped to Union lines, especially in occupied areas like Nashville, Norfolk and the Hampton Roads region in 1862, Tennessee from 1862 on, the line of Sherman's march, etc. So many African Americans fled to Union lines that commanders created camps and schools for them, where both adults and children learned to read and write. The American Missionary Association entered the war effort by sending teachers south to such contraband camps, for instance establishing schools in Norfolk and on nearby plantations. In addition, nearly 200,000 African-American men served as soldiers and sailors with Union troops. Most of those were escaped slaves. Confederates enslaved captured black Union soldiers, and black soldiers especially were shot when trying to surrender at the Fort Pillow Massacre. This led to a breakdown of the prisoner exchange program and the growth of prison camps such as Andersonville prison in Georgia, where almost 13,000 Union prisoners of war died of starvation and disease.

In spite of the South's shortage of manpower, until 1865, most Southern leaders opposed arming slaves as soldiers. They used them as laborers to support the war effort. As Howell Cobb said, "If slaves will make good soldiers our whole theory of slavery is wrong." Confederate generals Patrick Cleburne and Robert E. Lee argued in favor of arming blacks late in the war, and Jefferson Davis was eventually persuaded to support plans for arming slaves to avoid military defeat. The Confederacy surrendered at Appomattox before this plan could be implemented.

The Emancipation Proclamation greatly reduced the Confederacy's hope of getting aid from Britain or France. Lincoln's moderate approach succeeded in getting border states, War Democrats and emancipated slaves fighting on the same side for the Union. The Union-controlled border states (Kentucky, Missouri, Maryland, Delaware and West Virginia) were not covered by the Emancipation Proclamation. All abolished slavery on their own, except Kentucky and Delaware. The great majority of the 4 million slaves were freed by the Emancipation Proclamation, as Union armies moved South. The 13th amendment, ratified December 6, 1865, finally freed the remaining slaves in Kentucky, Delaware, and New Jersey, that numbered 225,000 for Kentucky, 1,800 in Delaware, and 18 in New Jersey as of 1860.

Threat of international intervention
Entry into the war by Britain and France on behalf of the Confederacy would have greatly increased the South's chances of winning independence from the Union. The Union, under Lincoln and Secretary of State William H. Seward worked to block this, and threatened war if any country officially recognized the existence of the Confederate States of America (none ever did). In 1861, Southerners voluntarily embargoed cotton shipments, hoping to start an economic depression in Europe that would force Britain to enter the war in order to get cotton. Cotton diplomacy proved a failure as Europe had a surplus of cotton, while the 1860–62 crop failures in Europe made the North's grain exports of critical importance. It was said that "King Corn was more powerful than King Cotton", as US grain went from a quarter of the British import trade to almost half.

When Britain did face a cotton shortage, it was temporary, being replaced by increased cultivation in Egypt and India. Meanwhile, the war created employment for arms makers, iron workers, and British ships to transport weapons.

Charles Francis Adams proved particularly adept as minister to Britain for the U.S. and Britain was reluctant to boldly challenge the blockade. The Confederacy purchased several warships from commercial ship builders in Britain. The most famous, the CSS Alabama, did considerable damage and led to serious postwar disputes. However, public opinion against slavery created a political liability for European politicians, especially in Britain. War loomed in late 1861 between the U.S. and Britain over the Trent Affair, involving the U.S. Navy's boarding of a British mail steamer to seize two Confederate diplomats. However, London and Washington were able to smooth over the problem after Lincoln released the two.

In 1862, the British considered mediation—though even such an offer would have risked war with the U.S. Lord Palmerston reportedly read Uncle Tom’s Cabin three times when deciding on this. The Union victory in the Battle of Antietam caused them to delay this decision. The Emancipation Proclamation further reinforced the political liability of supporting the Confederacy. Despite sympathy for the Confederacy, France's own seizure of Mexico ultimately deterred them from war with the Union. Confederate offers late in the war to end slavery in return for diplomatic recognition were not seriously considered by London or Paris.

Victory and aftermath
Historians have debated whether the Confederacy could have won the war. Most scholars emphasize that the Union held an insurmountable long-term advantage over the Confederacy in terms of industrial strength and population. Confederate actions, they argue, only delayed defeat. Southern historian Shelby Foote expressed this view succinctly: "I think that the North fought that war with one hand behind its back...If there had been more Southern victories, and a lot more, the North simply would have brought that other hand out from behind its back. I don't think the South ever had a chance to win that War." The Confederacy sought to win independence by out-lasting Lincoln; however, after Atlanta fell and Lincoln defeated McClellan in the election of 1864, all hope for a political victory for the South ended. At that point, Lincoln had succeeded in getting the support of the border states, War Democrats, emancipated slaves and Britain and France. By defeating the Democrats and McClellan, he also defeated the Copperheads and their peace platform. Lincoln had also found military leaders like Grant and Sherman who would press the Union's numerical advantage in battle over the Confederate Armies. Generals who did not shy from bloodshed won the war, and from the end of 1864 onward there was no hope for the South.

On the other hand, James McPherson has argued that the North’s advantage in population and resources made Northern victory likely, but not inevitable. Confederates did not need to invade and hold enemy territory in order to win, but only needed to fight a defensive war to convince the North that the cost of winning was too high. The North needed to conquer and hold vast stretches of enemy territory and defeat Confederate armies in order to win.

Also important were Lincoln's eloquence in rationalizing the national purpose and his skill in keeping the border states committed to the Union cause. Although Lincoln's approach to emancipation was slow, the Emancipation Proclamation was an effective use of the President's war powers.

The more industrialized economy of the North aided in the production of arms, munitions and supplies, as well as finances, and transportation. The table shows the relative advantage of the Union over the Confederate States of America (CSA) at the start of the war. The advantages widened rapidly during the war, as the Northern economy grew, and Confederate territory shrank and its economy weakened. The Union population was 22 million and the South 9 million in 1861; the Southern population included more than 3.5 million slaves and about 5.5 million whites, thus leaving the South's white population outnumbered by a ratio of more than four to one compared with that of the North. The disparity grew as the Union controlled more and more southern territory with garrisons, and cut off the trans-Mississippi part of the Confederacy. The Union at the start controlled over 80% of the shipyards, steamships, river boats, and the Navy. It augmented these by a massive shipbuilding program. This enabled the Union to control the river systems and to blockade the entire southern coastline. Excellent railroad links between Union cities allowed for the quick and cheap movement of troops and supplies. Transportation was much slower and more difficult in the South which was unable to augment its much smaller rail system, repair damage, or even perform routine maintenance. The failure of Davis to maintain positive and productive relationships with state governors (especially governor Joseph E. Brown of Georgia and governor Zebulon Baird Vance of North Carolina) damaged his ability to draw on regional resources. The Confederacy's "King Cotton" misperception of the world economy led to bad diplomacy, such as the refusal to ship cotton before the blockade started. The Emancipation Proclamation enabled African-Americans, both free blacks and escaped slaves, to join the Union Army. About 190,000 volunteered, further enhancing the numerical advantage the Union armies enjoyed over the Confederates, who did not dare emulate the equivalent manpower source for fear of fundamentally undermining the legitimacy of slavery. Emancipated slaves mostly handled garrison duties, and fought numerous battles in 1864-65. European immigrants joined the Union Army in large numbers, including 177,000 born in Germany and 144,000 born in Ireland.

Reconstruction
Northern leaders agreed that victory would require more than the end of fighting. It had to encompass the two war goals: secession had to be totally repudiated and all forms of slavery had to be eliminated. They disagreed sharply on the criteria for these goals. They also disagreed on the degree of federal control, that should be imposed on the South and the process by which Southern states should be reintegrated into the Union.

Reconstruction, which began early in the war and ended in 1877, involved a complex and rapidly changing series of federal and state policies. The long-term result came in the three Reconstruction Amendments to the Constitution: the Thirteenth Amendment, which abolished slavery; the Fourteenth Amendment, which extended federal legal protections equally to citizens regardless of race; and the Fifteenth Amendment, which abolished racial restrictions on voting. Reconstruction ended in the different states at different times, the last three by the Compromise of 1877.

For further details on how the protections of the Fourteenth and Fifteenth Amendments were subverted, see:
 * Reconstruction era of the United States
 * Disfranchisement after Reconstruction era (United States)
 * African-American Civil Rights Movement (1896–1954)
 * Jim Crow laws
 * United States v. Cruikshank (1875), which was a response to the Colfax Massacre
 * Posse Comitatus Act (1878)
 * Civil Rights Cases (1883)
 * Plessy v. Ferguson (1896)
 * Williams v. Mississippi (1898)
 * Giles v. Harris (1903)
 * Redemption (United States history)

Results


Slavery effectively ended in the U.S. in the spring of 1865 when the Confederate armies surrendered. All slaves in the Confederacy were freed by the Emancipation Proclamation, which stipulated that slaves in Confederate-held areas were free. Slaves in the border states and Union-controlled parts of the South were freed by state action or (on December 6, 1865) by the Thirteenth Amendment. The full restoration of the Union was the work of a highly contentious postwar era known as Reconstruction. The war produced about 1,030,000 casualties (3% of the population), including about 620,000 soldier deaths—two-thirds by disease. The war accounted for roughly as many American deaths as all American deaths in other U.S. wars combined. The causes of the war, the reasons for its outcome, and even the name of the war itself are subjects of lingering contention today. About 4 million black slaves were freed in 1861-65. Based on 1860 census figures, 8% of all white males aged 13 to 43 died in the war, including 6% in the North and an extraordinary 18% in the South. One reason for the high number of battle deaths during the war was the use of Napoleonic tactics such as charges. With the advent of more accurate rifled barrels, Minié balls and (near the end of the war for the Union army) repeating firearms such as the Spencer repeating rifle and a few experimental Gatling guns, soldiers were decimated when standing in lines in the open. This gave birth to trench warfare, a tactic heavily used during World War I.