With military force.
Communism and the Red Scare
McCarthyism
France
France
France
Containment.
France
The US was worried about other countries becoming powerful. No connection to Communism (a classless stateless society based on production for use).
Communism
Joseph McCarthy
Many factors contributed to tensions between the U.S. and Cuba in the 1950s. Cuba's army was growing, Cuba was impoverished by communism coming to power, and American businesses were nationalized.
The United States fought both Cuba and Russia to fight the spread of communism. One effect of this was the Cold War which lasted through much of the 1950s and 1060s.