 The Battle of Gettysburg was a turning point in the Civil War, costing the Union 23,000 killed, wounded, or missing in action. The Confederates suffered some 25,000 casualties, though. On November 19, 1863, President Lincoln delivered his famous Gettysburg Address during the dedication of a new national cemetery at the site of the Battle of Gettysburg. The Civil War effectively ended with the surrender of General Lee's Army of Northern Virginia, but that wouldn't be until almost two years later.