CASUALTY RECORD // June 25, 1862
Seven Days Battles
Estimated casualties — killed, wounded, captured, and missing — by side, with confidence labels per surviving record.
Casualties by side
2 sides catalogued · combined 36,059 estimated
United States
15,855
Medium-confidence figure
Confederate States (Confederacy)
20,204
Medium-confidence figure
Battle context
The Seven Days Battles, fought June 25 to July 1, 1862, near Richmond, Virginia, marked the decisive conclusion of the Union's Peninsula campaign. Confederate General Robert E. Lee, commanding a force of approximately 112,200, drove McClellan's Army of the Potomac — numbering over 101,000 — away from the Confederate capital and forced a retreat down the Virginia Peninsula. The outcome effectively ended the Union's most direct strategic threat to Richmond in 1862. Despite suffering higher casualties than the Union forces (20,204 Confederate to 15,855 Union), Lee's offensive pressure achieved its operational objective: removing the immediate danger to Richmond and shifting the initiative in the Eastern Theater to Confederate hands. The series is properly understood as the culmination of the Peninsula campaign rather than a separate campaign, and its result foreclosed the Union's best opportunity to end the war through a rapid seizure of the Confederate capital.
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