The cold war was a period of history during which the allied powers defeated hitler. the united states and the soviet union fought each other. the united states and the soviet union mistrusted each other. atomic bombs were dropped for the first time.

The correct answer is: "the United States and the Soviet Union mistrusted each other".

The Cold War Era was a period or direct rivalry exercised by the US and the URSS against each other, although none of them dared to undertake a direct attack because both superpowers feared a nuclear war. It took place after WWII, during the second half of the 20th century.

While the US leaded the Western bloc of capitalist countries, the URSS headed the Eastern bloc of communist satellite state. They never fought directly but the two powers usually got involved in opposite sides in proxy wars such as the Korean War or the Vietnam War.

The United States and the Soviet Union mistrusted each other.

Explanation:

This is the statement that best describes the Cold War. The Cold War was a period of history during which the United States and the Soviet Union mistrusted each other. This was due to the different ideologies that were prevalent in each country. The United States was a capitalist country, while the Soviet Union was a communist one. Moreover, each country wanted to expand its sphere of influence. This led to hostilities as well as several proxy wars.