Which event was the first to cause tension between the soviet union and president kennedy?

u. s. involvement in south vietnam

soviet building of the berlin wall

u. s. involvement in the bay of pigs invasion

soviet missiles found in cuba

The answer is Soviet missiles found in Cuba.

Explanation:

Also known as the Cuban missile crisis, the tension intensified that when the USA found Russia's plan to locate nuclear missile in Cuba, Russia's new found ally in the North America.

This would be a highly dangerous threat to the US National security as Cuba is only a few Kilometers away from the US Mainland. Moreover, if this happened, it would have given a strategic political and military advantage to the Soviets over USA in world politics and conflicts.

Soviet Building of the Berlin wall.

Explanation: Just took the test

your answer is: a passage or quotation taken or selected from a religious book example: the bible, torah, and the quran.

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the answer is a. 250 percent.