The US definitely was involved in the politics of Southeast Asia during and since the war in Vietnam.
Here are some pictures:
Thank you for using the Jiskha Homework Help Forum. Here are some sites to visit;
1. (Yahoo answers): http://answers.yahoo.com/question/index?qid=20080127213723AAXGtDM
2. (U.S. guidelines); http://www.heritage.org/research/AsiaandthePacific/bg2017.cfm
3. (essays): http://www.megaessays.com/essay_search/involvement_southeast_asia.html
4. (Vietnam): http://www.cyberessays.com/History/38.htm
Note: The U.S. keeps an eye on drug trafficing worldwide as well.