The Battle of Cooch's Bridge, also known as the Battle of Iron Hill, was a battle fought on September 3, 1777, between the Continental Army and American militia and primarily German soldiers serving alongside the British Army during the American Revolutionary War. It was the only significant military action during the war on the soil of Delaware (though there were also naval engagements off the state's coast), and it took place about a week before the major Battle of Brandywine. Reportedly, the battle saw the first flying of the American flag.