The U.S. Took them from Mexico and Frank/ Great Britan
Mediterranean Sea is the answer.
U.S. foreign policy shifted away from "isolationism" to international involvement, since the US started to steer away from Washington's idea that it should remain as detached from foreign issues as possible.
Answer:
it caused the downfall of 4 monarchies which were russia, turkey, germany & austria-hungary it created many new nation states. forced the us to become a world power and they lost $186 billion dollars
Explanation: