The battle of Brandywine began on September 11, 1777 near Brandywine creek.More troops fought at Brandywine than any other battle in the American Revolution it was also very long lasting 11 hours.The commander for the American army was George Washington and the commander for the British army was Sir William Howe.the battle started because the British planed a surprise attack but the Americans were at there base so they had the upper hand it was a close battle.The British won still.The British lost 89 men 488 wounded.The Amaricans lost 1200 wounded 700