What MOST led to such high tension during the cold war? (communism/containment, space race, cuban missile crisis, etc.) How could this issue have been resolved before becoming a bigger problem?

Communism

Because US and Soviet Union wanted world dominance or a capitalist world (US) or a communist world (Soviet Union).

The Cold War began shortly after World War II, as the United States and the Soviet Union contested political, economic and military hegemony in the world. A direct armed conflict would mean the end of both countries and, probably, of life on planet Earth.

This could have been avoided if no country wanted to rule the world.

the answer is mass marketing.

answer: alexander hamilton

explanation: alexander hamilton was george washington's right hand man. he took an early role in the militia as the american revolutionary war began. in 1777, he became a senior aide to general washington in running the new continental army.