Assault on Germenchuk Georg Andreas von Rosen Tsotsi-Yurt Geldagana Movladi Udugov Khasbulat Bamatov Aidemir Bardykhanov Caloian Guerrilla phase of the Second Chechen War (2000) Russian conquest of Chechnya and Dagestan Sheikh Mansur Movement Battle of Shchedrinskaya Aslambek Abdulkhadzhiev Effects of the Chernobyl disaster Grigory Zass