CASUALTY RECORD // September 5, 1781
Battle of the Chesapeake
Estimated casualties — killed, wounded, captured, and missing — by side, with confidence labels per surviving record.
Casualties by side
2 sides catalogued · combined 476 estimated
Royaume de France
230
Medium-confidence figure
Royaume de Grande-Bretagne
246
Medium-confidence figure
Battle context
The Battle of the Chesapeake, fought near the mouth of Chesapeake Bay on September 5, 1781, proved strategically decisive for the outcome of the American Revolutionary War. By preventing the Royal Navy from reinforcing or evacuating Lord Cornwallis's besieged forces at Yorktown, the French fleet under the Comte de Grasse secured control of the sea lanes and denied Britain its only viable relief option. This naval success directly enabled the Franco-American army to receive siege artillery and French reinforcements, which proved decisive in the Siege of Yorktown. The fall of Yorktown that followed effectively secured independence for the Thirteen Colonies, making the Chesapeake engagement one of the most consequential naval actions of the war despite its inconclusive tactical result in terms of ships destroyed.
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