 Fluent in Ottawa and French, Langlade later led First Nations forces in warfare in the region, at various times allied with the French, British, and Americans.Leading French and Indian forces, in 1752 he destroyed Pickawillany, a Miami village and British trading post in present-day Ohio, where the British and French were competing for control.During the subsequent Seven Years' War, he helped defend Fort Duquesne (Pittsburgh) against the British.