U.S. Marines with the night crew, Marine Medium Tiltrotor Squadron (VMM) 162 (REINFORCED), 26th Marine Expeditionary Unit (MEU), use a crank to adjust a CH-53 Super Stallion’s rotors prior to take-off during an Amphibious Ready Group/Marine Expeditionary Unit Exercise (ARG/MEU-Ex) aboard the USS Kearsarge, June 25, 2015. The night crew conducts maintenance and pre-flight checks on aircraft during night operations. The 26th MEU and Amphibious Squadron 4 are conducting an ARG/MEU-Ex in preparation for their deployment to the 5th and 6th Fleet areas of responsibility later this year. (U.S. Marine Corps photo by Cpl. Joshua W. Brown/Released)