The subject of this painting is the surrender of the British army at Yorktown, Virginia, in 1781, which ended the last major campaign of the Revolutionary War. The blue sky filled with dark clouds and the broken cannon suggest the battles that led to this event. In early September, entrenched with a force of 7,000 men, Cornwallis had hoped for rescue from the sea, but the British vessels were repelled by a French fleet. Within weeks General Washington had deployed a much larger army, and his artillery bombarded the British positions in early October. After American and French troops overran two British strongholds, Cornwallis surrendered on October 19, 1781.