The American Civil War was a conflict between the Union (Northern) forces and the Confederacy (Southern) forces from 1861 to 1865. It was one of the most significant conflicts in United States history, and it had an enormous impact on the nation’s future. It resulted in the death of more than 620,000 people, making it the deadliest war in American history. The war was fought over several issues, including the expansion of slavery, states’ rights, and economic issues involving tariffs and the banking system. The outcome of the war was the end of slavery and the reunification of the United States. The effects of the war have been felt throughout American history and can still be seen today.