Pontiac's War defeated them at the Battle of Bloody Run on July 31, 1763. Nevertheless, the situation at Fort Detroit remained a stalemate, and Pontiac's influence among his followers began to wane. Groups of Native Americans began to abandon the siege, some of them making peace with the British before departing. On October 31, 1763, finally convinced that the French in Illinois would not come to his aid at Detroit, Pontiac lifted the siege and removed to the Maumee River, where he continued his efforts to rally resistance against the British. Before other British outposts had learned about Pontiac's siege at Detroit,
Fort Detroit by the British after the French surrendered Montreal in 1760 during the French and Indian War (part of the Seven Years' War). The British held it until the American Revolutionary War, and it was taken over by the United States afterward. They built Fort Lernoult to the north along the river in 1779. This was later renamed as Fort Shelby and was abandoned by the US military in the 1820s. The city of Detroit demolished Fort Shelby in 1827. Cadillac ordered Fort Detroit built on the west side of the Detroit River in an effort to prevent British colonists from