The Battle of Red Bank (October 22, 1777) was a battle of the American Revolutionary War in which a Hessian force was sent to take Fort Mercer on the left bank (or New Jersey side) of the Delaware River just south of Philadelphia, but was decisively defeated by a far inferior force of Colonial defenders. Although the British did take Fort Mercer a month later, the victory supplied a sorely-needed morale boost to the American cause, delayed British plans to consolidate gains in Philadelphia, and relieved pressure on General Washington's army to the north of the city.