Answer:
4)The United States and the Soviet Union disagreed about how European countries should be governed.
Explanation:
During the Second World War, the Soviets suspected that British and Americans had chosen to leave the Russians the bulk of the war effort, and that they would forge a union against the Soviets (Operation Unthinkable) once the war was decided in favor of the Allies , to force the USSR to sign a peace treaty advantageous to Western interests. These suspicions undermined relations between the allies during World War II.
The allies did not agree on how European borders should be drawn after the war. The American model of "stability" was based on the establishment of governments and economic markets similar to the US (capitalist), and the belief that the countries governed thus go to international organizations (such as the then future UN) to settle their differences.
However, the Soviets believed that stability should be based on the integrity of the Soviet Union's own borders. This reasoning stems from the historical experience of the Russians, who had been invaded from the West during the last 150 years. The unprecedented damage inflicted on the USSR during the Nazi invasion (around 27 million deaths and widespread and almost total destruction of the invaded territory) led Muscovite leaders to ensure that the new European order made possible the long-term existence of the Soviet regime, and that this goal could only be achieved through the elimination of any hostile government along the Soviet western border, and the direct or indirect control of the countries bordering this border, to prevent the emergence of hostile forces in these countries .
