The correct answer to this open question is the following.
Many historians believe that the Cold War resulted from thinking that developed within the Truman administration during the late 1940s.
Yes, it makes sense to think that the Cold War resulted from thinking that developed within the Truman administration during the late 1940s.
After World War II, Soviet Union leader Joseph Stalin was not satisfied with the agreements that resulted from the Yalta Conference. This initiated a series of conflicts and differences with the United States. Both powerful countries aspired to influence and control the world.
The Korean War, Cuban Missile Crisis, the Vietnam War, and the Watergate scandal were all key events that took place during the Cold War era. These events had the most significant impact on the United States society and policy because they caused the United States government to make decisions and implement changes in the internal policy as well as the foreign policy to try to contain the advancements and movements of the Soviet Union.
During the Cold War years, the United States and the Soviet Union competed almost in everything, basically in the arms race, the space race, and the spread or containment of Communism, respectively. These caused too many problems and tension not only between the two but to all the countries. Let's just remember that during the Cuban Missiles Crisis of October 1962, the world was on the brink of another major war.