The Battle of Brandywine, also known as the Battle of Brandywine Creek, was fought between the American Continental Army of General George Washington and the British Army of General Sir William Howe on September 11, 1777, as part of the American Revolutionary War (1775–1783). The forces met near Chadds Ford, Pennsylvania, as Howe moved to take Philadelphia, then the American capital. The British forces routed the Continental Army and forced them to withdraw, first, to the City of Chester, Pennsylvania, and then northeast toward Philadelphia. More troops fought at Brandywine than any other battle of the American Revolution. It was also the longest single-day battle of the war, with continuous fighting for 11 hours.