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What was the main reason the United States and the Soviet Union became superpowers after World War II?
-> Both had nuclear weapons that the rest of the world feared.
World War II was a global war that started in 1939 and lasted until 1945. The war involved the vast majority of the countries those were having great powers. These countries helped in opposing the military allicances.
The main reason for the United States and the Soviet Union to become superpowers is that both had nuclear weapons that the rest of the world feared.
The united states and the soviet union were already powerful during world war II but post-war these both countries were well known for their nuclear weapons. Only these two countries were having nuclear weapons and powers. Due to which the entire world was feared by both of them.
This is because nuclear weapons are known for a mass disruption having several impacts on the entire country or the world.
To know more about nuclear weapons and powers, refer to the link:
https://brainly.com/question/256804