The victory of the Union led to the abolition of slavery and the reunification of the country.
Grant at Appomattox Court House in Virginia. Lee surrendered to Union General Ulysses S. The war ended in April 1865 when Confederate General Robert E. Over the course of the war, both sides mobilized hundreds of thousands of troops, and the conflict saw some of the bloodiest battles in American history, including Antietam, Gettysburg, and Shiloh. The conflict began in April 1861 when Confederate forces attacked Union troops at Fort Sumter in South Carolina.
The war resulted from long-standing tensions over issues such as slavery, states' rights, and the balance of power between the federal government and the states. The American Civil War was a major conflict fought in the United States from 1861 to 1865, primarily between the Northern states, known as the Union, and the Southern states, known as the Confederacy.