Find the values of x, y, and z. If there is not enough information, what else do you need to know?

It is the doctrine that the us had the right and duty to expand throughout north america. it just means they believed they had the right to expand westward and they did! they stated with the 13 colonies and then they kept moving gaining different territories throughout the years

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True the answer is true

If you dont know the answer dont commnent anything