Which three chiefs did Riel seek to ally with during the conflicts?

Riel sought to ally with Big Bear, Poundmaker, and Crowfoot during the conflicts associated with the North-West Rebellion and the broader struggle of Métis and Indigenous rights. These three chiefs were significant figures in their respective communities and held substantial influence. Big Bear was a chief of the Cree and was involved in the fight against government policies that adversely affected Indigenous peoples. Poundmaker, a chief of the Plains Cree, also worked toward negotiating peace and advocating for Indigenous rights. Crowfoot was a respected chief of the Blackfoot Confederacy, known for his diplomatic efforts to maintain peace amidst pressures from settlers and government forces.

The alliance with these leaders was crucial for Riel as it aimed to unify different Indigenous groups against the injustices they faced from the Canadian government. Their collaboration was intended to strengthen the Métis cause and ensure that the voices of Indigenous peoples were heard in the negotiations and demands for land rights and protections.

Options mentioning other figures, while significant in their historical contexts, do not directly relate to Riel's alliances during this particular conflict. For instance, Sitting Bull and his contemporaries were involved in different contexts and conflicts separate from Riel's struggles, while leaders like Red Cloud and Crazy Horse were engaged primarily in the American context. Therefore