Vadalov and Tarkhan Gaziyev consequently followed suit and re-affirmed their allegiance to Umarov .
Amir Khamzat , the commander of the Riyad - us - Saliheen Martyr Brigade suicide battalion was named the commander of the western sector ; Hussein Gakayev was named to lead the eastern sector .
Vadalov and Tarkhan Gaziyev followed suit and re-affirmed their allegiance to Umarov .
Amir Khamzat , the commander of the Riyad - us - Saliheen Martyr Brigade suicide battalion was named the commander of the western sector ; Hussein Gakayev was named to lead the eastern sector .