PACIFIC OCEAN (March 16, 2015) Marines from the “Greyhawks” of Marine Medium Tilitorotor Squadron (VMM) 161 (REIN) perform maintenance on an AH-1 Cobra Helicopter on the flight deck of San Antonio-class amphibious transport dock USS Anchorage (LPD 23). Anchorage is underway participating in a Composite Training Unit Exercise (COMPTUEX) with the USS Essex (LHD 2) Amphibious Ready Group (ARG), which is comprised of Amphibious Squadron (PHIBRON) THREE and 15th Marine Expeditionary Unit (MEU). (U.S. Navy photo by Mass Communication Specialist 3rd Class Liam Kennedy/Released)