Just had a go at your game and managed to get to level 6 with a score of 191,057 Traveller IQ of 93. Might have another go and see if I can improve on that, but I like a little more time for my geography questions. Also would have liked a bigger map.
You may find this hard to believe considering that the Americans are not normally known for their knowledge of geography outside of the USA but I did a US Forces course once when we had to learn place names, countries, etc and quickly put them correctly on the map. Not too dissimilar to this really.
I don't think I would have any problems with Korea somehow having served there and got the "T" shirt. Uzbekistan is a different kettle of fish. Probably somewhere between Turkey and what I used to know as the USSR.