Michigan Territory Michilimackinac, then Detroit; this was essentially a military regime that reported to the governor-general at Quebec. Its role was to supply the needs of the fur traders and discourage any settlements not directly supportive of that effort. After the surrender of Montreal in 1760, British troops under Robert Rogers occupied Detroit and its dependent posts. In 1763, Pontiac's Rebellion saw the fall of Fort Michilimackinac to the northern tribes, and a lengthy siege of Fort Detroit. The siege was lifted in 1764, and rule under a British lieutenant-governor at Detroit followed soon thereafter. Due to the Quebec Act of 1774,
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.