Command Sgt. Maj. Bryan Link, Special Operations Task Force-West Command sergeant major, stands on machine gun casings and links at a coalition base in the village of Darrah-I-Bum, Badghis province, Afghanistan Jan. 4. International Security Assistance Force Command Sergeant Major, Marvin L. Hill, and a cadre of personnel listened to a security brief on a rooftop position overlooking the valley. The brief was part of a visit to Marines, sailors, and soldiers of Special Operations Task Force-West living and working in Darrah-I-Bum.