 The British did not attempt to take the fort again . Within days of the battle , <unk> learned of the signing of the Declaration of Independence in Philadelphia . The British troops were <unk> on their transports , and on July 21 the British fleet withdrew northward to help the main British army in its campaign against New York City . To add insult to injury , one of the British transports grounded off Long Island and was captured by <unk> forces . 
