1. which was the main reason that the united states adopted policies to stop the spread of communism around the world?

The main reason that the United States adopted policies to stop the spread of communism around the world was to contain the influence of Russian communism in Eastern Europe,China,korea,Africa,Vietnam and Latin America.

This tension between Russia and USA led to Cold War between Russia and America.

USA developed The Marshall Plan to financially aid the countries where Russia tried to spread communism thinking they were poor countries.

answer: ensure protection from communism

explanation:

the north atlantic treaty was largely dormant until the korean war initiated the establishment of nato to implement it, by means of an integrated military structure: this included the formation of supreme headquarters allied powers europe in 1951, which adopted the western union's military structures and plans.