Philippines

[gila]

I would venture a guess,, the Philippines were under U.S.control since the Spanish American War to july 4 1946 not really a country,more like a territory.

But they did partcipate very much and bravely in defence against the JIA invasion,and read that more Philippino's died after the JIA occupation than americans.
Trouble is the line has to drawn somewhere,who gets in, or not.

Good question though,there maybe someone who could help you mod some guerrilla forces.