The United States joined World War 1 first because German U-Boats sunk the <em>Louisiana</em> Ship which was carrying 1962 passengers where 1198 lost their lives. The ship had 128 Americans as it left for Liverpool from New-York on May 1st, 1915 which resulted in the rise of a lot of outrage in the U.S. Secondly, Germany had resumed restricted submarine warfare in the Atlantic through a policy initiated in 1915 which allowed U-Boats to hunt and sink merchant ships without warning. The entry of the U.S in the war resulted in a boom in the economy as industries enjoyed an increase in their profits. The war further impacted change on the social, economic and political as the U.S emerged as a world military and industrial leader. There was also a rise in immigrants from other European countries with estimates of 300,000-500000 African Americans moving North to the cities.
Answer:
He was a german philosopher who lived in the 19th century.
Explanation:
The Roosevelt Corollary's purpose was to keep European powers out of the Americas (and thus out of the United States), it was meant to maintain the policy against foreign intervention in the Americas. It was also used to justify US power and intervention in other parts of the Americas.
The answer to this question is probably C. Hope this helps!