C. A union citizen opposed to fighting the war
The purpose of the Yalta Conference (February 1945) was to discuss what Europe would look like after World War II. The conference involved the three largest allied powers during this time, including the US, Soviet Union, and Great Britain. This meeting revolved around getting Germany to surrender unconditionally as well as a plan for reorganizing territories and who would control them after the war.
The Potsdam Conference (July-August 1945) focused on punishing war criminals, land boundaries, reparations payments, and getting Japan to unconditionally surrender. Japans surrender would essentially end World War II.
The lack of democracy, economic backwardness and crisis in the Soviet republics eventually accelerated the crisis of socialism in the late 1980s. In 1989 the Berlin Wall falls and the two Germanys are reunited.
In the early 1990s, then-president of the Soviet Union Gorbachev began to accelerate the end of socialism in that country and its allies. With economic reforms, agreements with the US, and political changes, the system has been weakening. It was the end of a period of political, ideological and military clashes. Victorious capitalism was gradually being implanted in the socialist countries.