Why did tensions exist between the U. S. and Soviet Union at the conclusion of World War 2

The Soviet Union was liberating, they were taking the countries as puppets. The Soviet Union was getting stronger and stronger, while the US were liberating, not taking.

Explanation: I think it's self explanatory.

answer: in october 1962, an american u-2 spy plane secretly photographed nuclear missile sites being built by the soviet union on the island of cuba. president kennedy did not want the soviet union and cuba to know that he had discovered the missiles. he met in secret with his advisors for several days to discuss the problem.

explanation:

the constitution gives congress the power to regulate commerce "among" the several states.