Chechen Fighters in Afghanistan

Buried in a report from last week is the following paragraph.

In Zabul province, Afghan security forces and NATO troops launched an operation Wednesday against Chechen fighters meeting in Daychopan district, said district chief Fazel Bari. The ensuing two-hour gun battle left three Chechens dead and six wounded, he said.

Am I the only person wondering what a platoon of Chechen fighters is doing in Afghanistan?

Tip: Garduneh Mehr