Decisions at Antietam

The Battle of Antietam has long been known as the bloodiest day in American military history with more than twenty thousand soldiers either dead, wounded, or missing. The Confederacy, emboldened after a conclusive victory at the Battle of Second Manassas, launched the Maryland Campaign and considered a decisive battle on northern soil as a lynchpin to their objectives. As Gen. Robert E. Lee pushed his veteran Army of Northern Virginia deeper into Maryland, Gen. George B. McClellan hastily assemb