Command Sgt. Maj. Bryan Link, Special Operations Task force-West command sergeant major, stands on machine gun casings and links at a forward operating base in the village of Darrah-I-Bum, Badghis province, Afghanistan, Jan. 5. International Security Assistance Force command sergeant major, Command Sgt. Maj. 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.