The Battle of Brandywine Creek 1777
Casualties: The British lost 550 killed and wounded. The Americans lost around 1,000 killed, wounded and captured and 11 guns, 2 of which had been taken at Trenton. The Marquis de Lafayette, fighting with Sullivan, was among the wounded.
Follow-up: Brandywine is not considered a decisive battle. Nevertheless it hastened the loss of Philadelphia to the British on September 26, 1777. The British failed to exploit their success.