Why was the u. s. concerned about the presence of missiles in cuba?

Missiles could be launched from Cuba to the US.

Explanation:

A

michael joseph jackson was an american singer, songwriter, and dancer. dubbed the "king of pop", he is widely regarded as one of the most significant cultural figures of the 20th century and one of the greatest entertainers of all time.

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answer; pentagon papers, vietnam draft-resistor, james dean, american revolution;