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 Fort Gaines 1864. With the fall of Fort Gaines, Granger left a garrison at the fort and immediately moved against Fort Morgan to the east. After a two-week siege - the Siege of Fort Morgan - General Page surrendered his fort too on August 23, 1864. The loss of these two forts gave control of Mobile Bay and ended the bay's use as a port for the Confederates. Siege of Fort Gaines The Siege of Fort Gaines occurred between August 3 and 8, 1864, during the American Civil War. It took place in the Mobile Bay area of Alabama as part of