 He was severely wounded at the Battle of Long Island on August 27, 1776.After recovering, he rejoined General George Washington's army for the Philadelphia campaign, seeing action at Brandywine, Germantown, Paoli and Monmouth, and wintering with the army at Valley Forge.He was promoted to captain in December 1778, and served as brigade inspector of the Pennsylvania Brigade, his experience making him a good choice for drill instructor.