The united states government agreed to become involved in the korean and vietnam wars because?

many believed the U.S. should take an active hand in stopping the spread of communism.

d. the great plains       hop3 this yo

roosevelt believed that in light of the country's recent military successes, it was unnecessary to use force to achieve foreign policy goals, so long as the military could threaten force. this belief, and his strategy of “speaking softly and carrying a big stick,” shaped much of roosevelt's foreign policy.