What do you mean by THIS involvement? To what does THIS refer?
This site has a brief answer for your second question.
http://wiki.answers.com/Q/How_did_the_United_States_become_involved_in_Southeast_Asia
Explain how this involvement impacted the U.S. political climate of the 1950s.
Explain how the U.S. became involved in the politics of Southeast Asia.
1 answer