So that the Panama Canal could be built. This would make it easier for the United States to move their ships from the Atlantic to the Pacific and vice versa.
Answer:
They occupied higher ground
Explanation:
Again, I haven't taken the class, but I love american history, so here you go XD
Answer:
The U.S. economy prospered more than the economies of European nations.
Explanation:
The end of WW1 caused a boom in the United States economy, leading the country to become the international superpower it is today.