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,
Siege of Detroit Siege of Detroit The Siege of Detroit, also known as the Surrender of Detroit or the Battle of Fort Detroit, was an early engagement in the British-U.S. War of 1812. A British force under Major General Isaac Brock with American Indian allies under Shawnee leader Tecumseh used bluff and deception to intimidate U.S. Brigadier General William Hull into surrendering the fort and town of Detroit, Michigan and his dispirited army, which actually outnumbered the victorious British and Indians. The British victory reinvigorated the militia and civil authorities of Upper Canada, who had previously been pessimistic and affected by pro-U.S. agitators.