 The expedition consisted of 19 warships, 24 transport ships, and over 1,000 militiamen. Their objective was to capture the 750-man British garrison at Castine off the Penobscot Peninsula in what would later become Maine. The expedition arrived on July 25th and proceeded to launch a series of inconclusive land attacks, leaving Patriot naval forces underutilized and allowing the British time to send for reinforcements.