Answer:The treaty established the 49th parallel from the Rocky Mountains to the Strait of Georgia as the boundary between the United States and British Canada. ... In 1818, a U.S.-British agreement had established the border along the 49th parallel from Lake of the Woods in the east to the Rocky Mountains in the west.
Explanation:
The league of nations might have forced the united states to become an international peacekeeper
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The Answer is C. It led to the deaths of thousands of people