I think is North America.
I'm not sure how much my answer.(๑•́ ₃ •̀๑)
Answer:
The most pressing points of tension with European nations were eliminated during the first half of the century: purchase of the Louisiana Territory from France in 1803 gave the United States control over the heartland of the
Explanation:
For Italy, they were spies who collected top secret knowledge for the Allied Powers. They were U.S. soldiers who fought off the enemy successfully. They were British troops leaving their units to join the enemy.
Monroe doctrine
Monroe doctrine warns European countries to not colonize or puppet monarch