The battle of Sharpsburg or Antietam was General Robert E. Lee's first invasion of the North and culminated in America’s bloodiest single day of war and after twelve hours of fighting, over 23,000 troops were killed, wounded, or missing.

The piecemeal assault of Maj. General Geo. B. McClellan on the Army of Northern Virginia continued after the death of Gen. Mansfield and the repulse of the XII Corps with the advance of Maj. Gen. Edwin V. Sumner’s II Corps, which forded Antietam Creek and attacked south of the previous advance of The XII Corps.

the War
Between
the States

Sharpsburg
Antietam

September 17^th, 1862

General Sumner's II Corps advanced from east to west (right to left) with Gen. Sumner personally commanded Sedgwick’s Second Division and the II Corps sustained fifty percent casualties during this attack.

This was Jackson’s position near the Dunker Church looking in the direction of Gen. Sumner’s attack.

Ransoms’ Brigade, Walker’s Division, Longstreet’s Corps advanced along Hagerstown Road and right wheeled to attack the Union 2nd Division II Corps.