Which of the following statements best explains the motives behind american military involvement in the korea war?

The involvement of the United States in the Korea War was in accordance to the Truman Doctrine, which sought to counteract the geopolitical expansion of the Soviet Communism in Asia. Also, Truman had a lot of internal pressure by a faction of the public opinion that considered he was "too soft" with the Communism. For that reason, for the United States was really important to face the Communist advance supported by China and The Soviet Union.

Explanation:

the right answer for the question that is being asked and shown above is that: "their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful.  " the  participant in european imperialism is being described below is that  their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful.