Ah-1 Cobra night
U.S. Marines with Marine Medium Tiltrotor Squadron 161 (Reinforced), 15th Marine Expeditionary Unit, perform post-flight maintenance on an AH-1Z Viper aboard the USS Anchorage (LPD 23) in the Philippine Sea, June 2, 2015. The Marines of VMM-161 (Rein.) work day and night to ensure the aircraft are mission capable.