No. For Cambodia, the best thing was for all foreign interlopers to get the heck out of there, which they did in 1991. The place is just so screwed up that almost nothing can save it. Some countries are like that -- hopeless.
we all know the soviet union backed communist dictators,but the USA regards itself as the bastion of democracy,but it backed right-wing dictators in central-south america,and even backed the khmer rouge,a radical communist group led by a madman,just because of what happened in vietnam,the USA also backed SADDAM when they knew he was killing his own people,but they didnt care,because at the time they seen him as a lesser of two evils,because they were at war with iran,and lets not forget backing the taliban and osama bin laden in afghanistan,the USA needs to take a long hard look at its foreign policy over the years,the USA helped make bin laden.