States involved in the American civil war?

The American Civil War, fought from 1861 to 1865, primarily involved the Northern states, known as the Union, and the Southern states, referred to as the Confederacy. The Union consisted of 20 free states and 5 border states that remained loyal to the federal government, while the Confederacy was formed by 11 Southern states that seceded from the Union. These Confederate states included Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Texas, and Virginia. The conflict arose mainly over issues such as slavery, states' rights, and economic differences.