We at the American Battlefield Trust are re-releasing our Animated Battle Maps with newly branded openings. In this video, learn about the first Civil War battle to take place on Union soil, The Battle of Antietam in Sharpsburg, Maryland. Antietam remains the bloodiest day in American history. Our collection of animated maps bring battles of the American Civil War to life, complete with troop movement animations, narratives, reenactment footage and more.