Col. Paul F. Bertholf (center), the commanding officer of the Marine Corps Combat Service Support Schools, speaks with a Marine with 2nd Supply Battalion, Combat Logistics Regiment 25, 2nd Marine Logistics Group about a cooperative field exercise between the battalion and the Marine Corps' Supply School aboard Camp Lejeune, N.C., Aug. 27, 2013. The operation gave students from the Ground Supply Officer Course an opportunity to learn from Marines already serving in the Fleet Marine Force with a supply unit in a field environment.