Pontiac (Ottawa leader) On May 9, he laid siege to the fort, and was eventually joined by more than 900 warriors from a half-dozen tribes. While Pontiac was besieging Fort Detroit, messengers spread word of his actions. Indians made widespread attacks against British forts and Anglo-American (but not French) settlements, and at one point controlled nine of eleven British forts in the Ohio Valley. They destroyed Fort Sandusky. In July 1763, Pontiac defeated a British detachment at the Battle of Bloody Run, but he was unable to capture the fort. In October, he lifted the siege and withdrew to the Illinois Country, where
Tecumseh along the Thames Valley. Tecumseh sought continued British support in order to defend tribal lands against the Americans. However, a much reinforced Harrison led an invasion of Canada. The siege began on May 5, 1813, when a small British force of less than 1,000 men under the command of Major-General Procter, the British commander on the Detroit frontier, and an estimated 1,250 Indian warriors led by Tecumseh and the Wyandot leader, Roundhead, attempted to capture Fort Meigs in northwestern Ohio. The British hoped that the effort would delay an American offensive attack against Detroit, which the British had captured in