U.S. Marine Corps Cpl Torril L. Marshall with Transportation Support Company, Combat Logistics Battalion 2, 2nd Marine Logistics Group, instructs how to properly disable a M240B and M250 caliber machine gun on Fort Bragg, N.C., Oct. 21, 2014. The Marines and Sailors participating in Rolling Thunder train to maintain mission readiness in support of 10th Marine Regiment, 2D Marine Division, 2D Marine Expeditionary Force. (U.S. Marine Corps photo by PFC Stephanie Cervantes/Released)