Siege of Fort Detroit had apparently been informed of Pontiac's plan, and the garrison of about 120 men was armed and ready. Pontiac withdrew and, two days later, laid siege to the fort. A number of British soldiers and civilians in the area outside the fort were captured or killed; one of the soldiers was ritually cannibalized, as was the custom in some Great Lakes Indian cultures. The violence was directed only at the British: French colonists were left alone. Eventually more than 900 Indian warriors from a half-dozen tribes joined the siege. On May 28, a supply convoy commanded by Lieutenant Abraham Cuyler
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