What The confederate forces were defeated at the?

The Confederate forces were defeated at several key battles during the American Civil War, most notably at the Battle of Gettysburg in July 1863. This three-day confrontation marked a turning point in the war, as Union forces successfully repelled General Robert E. Lee's invasion of the North. Additionally, the surrender of Confederate General Robert E. Lee at Appomattox Court House in April 1865 effectively marked the end of the Civil War, leading to the collapse of the Confederacy.