The locations I believe were the countries outside of Vietnam where the US was fighting (ie cambodia and laos). The timeframe I am not sure of. I have looked for my old course packs from uni but I think they may be in storage.
Anyways my understand of anthropologists in vietnam comes from left wing canadian anthro profs so the version I got was not overly sympathic to the us military.
Bascially I think the best counter offensive would be if there was an educated, well spoken, well funded conservative group dedicated to getting more conservatives as profs. Besides maybe economics the liberals basically control most of the higher education. :P