Simple. One country might have some materials, goods, etc., that is vital for another country. These countries trade so that they are able to access the resources that other nations provide.
Answer: In my opinion, the U.S. actions in world affairs at the turn of the 20th century should be praised. During the time, their actions led them to a major increase in economics and world power. Even though they did not successfully achieve the peace that they wanted, they had become a world power.
Explanation:
Yes, and the Africans beloved him.
Alexander Hamilton helped found the Federalists party. Thomas Jefferson and James Madison founded the Democratic-Republican party.