Unrepresented nations PG needs most?

[Shad]

If you could snap your fingers and add a nation to PG's order of battle, which would it be?

For quick reference:

• here are all the nations currently in PG
  
• here is a list of participants in WW2
  

Apart from China, which is a glaring omission in my eyes, I would love to see a module on the Battle of Singapore. We could get some neat special counters for the Malay and Singaporean troops.

I figure there's probably 10 distinct scenarios + a mini-campaign worth of material there, and with the Brits involved there should be some good historical sources to draw from.