Foundational Element of Cold War Origins

After World War II, the geopolitical landscape underwent significant changes that led to the emergence of the Cold War. The ideological conflict between the United States and the Soviet Union became the foundation of international relations in the late 1940s and early 1950s. One important document that outlined the United States' strategy of containing the spread of communism was articulated through various policies and doctrines. Which of the following statements accurately depicts a foundational element in the origins of the Cold War?