Battle of Antietam Battle of Sharpsburg Part of the American Civil War The Battle of Antietam, by Kurz & Allison (1878), depicting the scene of action at Burnside 's Bridge Date September 17, 1862; 156 years ago (1862 - 09 - 17) Location Washington County, near Sharpsburg, Maryland 39 ° 28 ′ 24 '' N 77 ° 44 ′ 41 '' W ﻿ / ﻿ 39.47333 ° N 77.74472 ° W ﻿ / 39.47333; - 77.74472 Coordinates: 39 ° 28 ′ 24 '' N 77 ° 44 ′ 41 '' W ﻿ / ﻿ 39.47333 ° N 77.74472 ° W ﻿ / 39.47333; - 77.74472 Result Tactically inconclusive; Union strategic victory Emancipation Proclamation issued five days later Belligerents United States (Union) Confederate States (Confederacy) Commanders and leaders George B. McClellan Robert E. Lee Units involved Army of the Potomac Army of Northern Virginia Strength 87,164 38,000 "engaged '' Casualties and losses 12,410 2,108 killed 9,549 wounded 753 captured / missing 10,316 1,567 killed 7,752 wounded 1,018 captured / missing
who won the battle of antietam union or confederate
Union Union