you may laugh at me, but Im brazillian (we speak portuguese here), and started learning the basics of russian reading so I can play the game. Since I dont want to understand everything is happening, just the basics, I think a 2 weeks study time will be enough. At least to play a few skirmish games of KB!
These sites helped me a lot :
http://www.dorogadomoj.com/se03abv.html (alphabet)
http://www.word2word.com/coursead.html#russian