The Americans, under the leader of Jacob Brown, were anticipating this attack and had a camp set up there in order to train new troops.  When this anticipated attack occurred it lasted for about three hours on horse island and the surrounding areas.  The Americans were initially able to keep the British from coming ashore but when they did the Americans retreated to the mainland.  The British could not follow them because they were not able to scale the cliffs of the mainland.  The British retreated from the shores at about nine in the morning when the Americans started winning the battle.
