What was one cause of the Red River War?

A number of factors led to the military's campaign against the Indians. Westward-bound settlers came into conflict with the nomadic tribes that claimed the buffalo plains as their homeland during the nineteenth century.

A number of factors led to the military's campaign against the Indians. Westward-bound settlers came into conflict with the nomadic tribes that claimed the buffalo plains as their homeland during the nineteenth century.

the answer is a. mothma gupta.