U.S. Marines with Combat Logistics Battalion 15, 15th Marine Expeditionary Unit, attach a LAV-25 light armored vehicle to a CH-53E Super Stallion during an external extract aboard Camp Pendleton, Calif., Jan. 21, 2015. The CH-53E is assigned to Marine Medium Tiltrotor Squadron 161 (Reinforced). As the 15th MEU’s combat logistics element and the air combat element respectively, CLB-15 and VMM-161 (Rein.) work together to enhance their combat skills in environments similar to those they may find in future missions. (U.S. Marine Corps photo by Cpl. Steve H. Lopez/Released)