These are a bit out of the way, but if you are in the military you might find yourself in Okinawa, Japan at some point...
Yonkudo and Variety Hobby Time
Yonkudo is a very nice shop, very clean, don't let the small building fool you! Variety Hobby Time is older and a bit grungier, but you can find some gems tucked away in the corners there - I found a Tsukuda KBoP there, for example. The proprietors are also very nice, but the place can be tricky to find.
See the top two entries here: Okinawa City Shops
Ginowan, very close to Camp Foster
Shima is my main shop. An older guy runs it, and he speaks some English (not much). The place is stacked to the rafters with kits, tools and supplies.
See the top entry here:
Mark in Okinawa
On the off chance you're still in JPN, any recommendations for the Nagoya or Narita area. I do find myself in Okinawa occasionally and will check out the above recommendations and see if they've weathered the Millennial generation and the economy!