Russian forces use Tajik units and former UTO fighters to guard the border. Tajikistan is a very complex question. It is difficult to pressure the Tajikistan government. There is speculation that the Tajikistan government allows the IMU to fight in Uzbekistan. Tajikistan is very difficult to govern.
Warlords there have there own security forces.
There are elements in Iran that might support it, after all the IMU is able to use Iranian radio to get its message across. The US Central command has taken over the portfolio of Central Asia. The US only provides non-lethal support. However our engagement is constantly changing. We are involved in the partnership for peace.