A. He hoped to create a world organization where countries could gather and resolve the quarrels peacefully.
The U.S. Congress actually denied entry into the League of Nations because they feared it would drag America into future wars.
At this time of course there is no more Soviet Union, but in the past, ie during WWII the two countries were allies both fighting against Hitler and the Nazis. During the Cold War there was contention between these two superpowers and wars such as the Vietnam War reflected this and tensions such as over the Cuban missile crisis were high.
In the 1930s, many people began thinking Marx was right and that Communism was the wave of the future because the New York Stock Exchange crashed in 1929, fulfilling Marx's prediction of business booms and crashes.
C) by blockading West Berlin
On the hopes of the Allies giving up on Germany, the USSR blockaded Berlin to see if they could take all of Germany from the democratic nations. However, this failed because of the Berlin Airlift & Marshall Plan, and the USSR slowly disentigrated after that
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