A tree fell on Wayne's tent on August 3, 1794, at Fort Adams in northern Mercer County. He was knocked unconscious, but he recovered sufficiently to resume the march the next day to the newly built Fort Defiance. On August 20, 1794, he mounted an assault on the Indian confederacy at the Battle of Fallen Timbers in Maumee, Ohio, which was a decisive victory for the U.S. forces and ended the war. Wayne then continued to Kekionga where he oversaw the construction of Fort Wayne. He then negotiated the Treaty of Greenville between the tribal confederacy and the United States, which was signed on August 3, 1795. The treaty gave most of Ohio to the United States and cleared the way for the state to enter the Union in 1803.