What caused relations to deteriorate between the united states and the soviet union in 1979? the united states invaded afghanistan to prevent the spread of communism. the soviet union invaded afghanistan to its communist government. the shah of iran entered the united states, which angered communists. the united states fought the taliban, which angered communists.

The correct answer to this question is The Soviet Union invaded afghanistan to help its Communist government.

The Soviet Union invaded other nations to defeat its Western Enemies, including the US in the frame of the Cold War, and were made in the name of international socialism and prestige around the globe.

B. The Soviet Union invaded afghanistan to help its Communist government.

Explanation:

the effect of the ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus. ming emperors disallowed foreign exploration