U.S. Marines with Rolling Thunder 3, Transportation Support Company, Combat Logistics Regiment 2, load generators at Forward Operating Base Sabit Qadam, Helmand province, Afghanistan, April 21, 2013. Rolling Thunder 3 conducted the combat logistics patrol to resupply and retrograde in support of Regimental Combat Team 7. (U.S. Marine Corps photo by Sgt. Anthony L. Ortiz / Released)