in the early 70's I was stationed in Japan and the Philippines, took some leave time in Hong Kong and Taipei, and TDY to Thailand and Okinawa...once down in SEA, a Thai elephant hide money belt was pretty much universal for the guys in my unit.... a copy of orders with TSCW clearance so you could get on a space available flight, and in the days before widespread copiers, a microfiche type 35mm photograph of your birth certificate to get you into a US Embassy or Legation if you lost your military ID... inexpensive nylon money belts are available similar to this one by AeroStitch...