What were the specific concerns of American policymakers during and after WWII with regard to the USSR? How did the fear of communism aboard impact American foreign policy in the post period?

The specific concerns of American policymakers during and after World War II with regard to the USSR can be understood by examining the geopolitical and ideological dynamics of the time. The United States and the Soviet Union emerged as the two superpowers after the war, but they had contrasting political and economic systems and competing ideologies. American policymakers were worried about several key areas in relation to the USSR:

1. Expansionist tendencies: There was a concern that the Soviet Union, under the leadership of Joseph Stalin, had expansionist aims and sought to spread communism to other countries. This was evident in the Soviet support for communist movements and governments in Eastern Europe, such as the establishment of satellite states.

2. Ideological conflict: The United States promoted democracy, capitalism, and individual freedoms as the foundation of their society. They viewed communism as a threat to these values and believed that the spread of communism would undermine the American way of life.

3. Nuclear weapons race: After the war, both the United States and the Soviet Union became nuclear powers. The fear of a potential nuclear conflict intensified as it was believed that the Soviets could pose a significant threat to American national security.

The fear of communism abroad greatly impacted American foreign policy in the post-World War II period. This fear led to the adoption of a policy known as containment, which aimed to prevent the further spread of communism. The United States pursued various strategies to contain Soviet influence, including the formation of military alliances like NATO, providing economic aid to countries to prevent them from falling under Soviet influence, and engaging in proxy wars, such as the Korean War and the Vietnam War, to counter the spread of communism.

Furthermore, the fear of communism also led to the implementation of domestic policies to root out communism within the United States. This period, known as the "Red Scare," was characterized by the persecution of suspected communists, investigations by congressional committees, and the suppression of civil liberties in the name of national security.

In summary, American policymakers during and after World War II were primarily concerned about the expansionist tendencies of the USSR and the spread of communism. This fear of communism abroad shaped American foreign policy, leading to the implementation of the containment policy and increased military and economic interventions to counter Soviet influence. Additionally, the fear of communism also influenced domestic policies in the United States, resulting in the "Red Scare" era.