The major reason the united states became involved in the korean war was the

The major reason the United States became involved in the Korean war was because Communism was spreading throughout China and they wanted to prevent that from happening.

after the roman empire, the catholic church began to unify by taking on many duties of a government.

the correct answer option is: weapons.

explanation:

tensions rose as the two opposing superpowers competed for 'weapons'.

referring to the cold war (1945-1991), the two superpowers, usa and ussr, experienced a phase of struggle and conflict with each other. these two superpowers considered each other as a threat to their survival and thus opted for policies to strengthen their positions.

the two superpowers never went to war with each other directly but competed for weapons to preserve their positions.