The United States conducted two failed invasion attempts in 1812, first by General William Hull across the Detroit River into what is now Windsor, Ontario, and a second offensive at the Niagara peninsula. A major American success came in 1813, when the American Navy destroyed the British fleet on Lake Erie, and forced the British and their American Indian allies to retreat back toward Niagara. They were intercepted and destroyed by General William Henry Harrison at the Battle of the Thames in October 1813. Tecumseh, the leader of the tribal confederation, was killed, and his Indian coalition disintegrated.