What nation in the western hemisphere, right on "america's doorstep," became pro-communist in 1959?
cuba
haiti
jamaica
dominican republic

The correct answer is A) Cuba.

The nation in the Western hemisphere, "right on America's doorstep," that became pro-Communist in 1969 was Cuba.

Under the heavy influenced and support of the Soviet Union, Fidel Castro won the Revolution of Cuba and installed a Communist form of government on the island of Cuba in 1959. It represented a great risk for the United States. Being so close to the Florida Peninsula, Cuba was now under a Communist regime supported by the USSR. During those years of the Cold War, Cuba played a major role in the conflict between the Soviet Union and the United States, basically with the Cuban Missiles Crises that set the world on the brink of another World War.

the two atomic bombs dropped on japan in 1945 killed and maimed hundreds of thousands of people, and their effects are still being felt today. the uranium bomb detonated over hiroshima on 6 august 1945 had an explosive yield equal to 15,000 tonnes of tnt.