180822-M-YR007-1008 MINDANAO SEA (Aug. 22, 2018) U.S. Navy Sailors with Combat Logistics Battalion 13, 13th Marine Expeditionary Unit (MEU), conduct gas mask IV drills while aboard the San Antonio-class amphibious transport dock USS Anchorage (LPD 23) during a regularly scheduled deployment of the Essex Amphibious Ready Group (ARG) and 13th MEU, August 21, 2018. The Essex ARG/13th MEU is a capable and lethal Navy-Marine Corps team deployed to the 7th fleet area of operations to support regional stability, reassure partners and allies and maintain a presence postured to respond to any crisis ranging from humanitarian assistance to contingency operations. (U.S. Marine Corps photo by Cpl. Austin Mealy/Released)