Kazakhastan is home to one of the new american foward bases in central asia. the russians don't like it, but what can they do?
Kazakhastan is rich in natural gas and oil, but is land-locked. The afghan conflict made it possible to export the gas and oil via afghanistan and pakistan, bypassing Iran.
It is run by a dictator who oppresses his own people. The national parliament is quite feisty. A lot of Russians are leaving the country because they have to choose which country they want to be a citizen of: Kazakhastan or Russia.
Kazakhastan is also home to the remnants of the Soviet Union's vast nuclear, chemical, and biological stockpile. These are being cleaned up with the help of american dollars.