It started a period of violence known as bleeding kansas
submarine warfare.
Explanation:
As germany took down a civilian ship having more than 3000 passenger in medeterian sea..
Answer:
In 1949, the prospect of further Communist expansion prompted the United States and 11 other Western nations to form the North Atlantic Treaty Organization . The Soviet Union and its affiliated Communist nations in Eastern Europe founded a rival alliance, the Warsaw Pact, in 1955.
elite theorists is the correct answer
