190701-M-PY691-159 TOWNSHEND ISLAND, Australia (July 1, 2019) Sgt. Romero Celso, an assault amphibious vehicle crew chief assigned to Battalion Landing Team, 2nd Battalion, 1st Marines, 31st Marine Expeditionary Unit, prepares for a simulated raid aboard the amphibious transport dock ship USS Green Bay (LPD 20) off the coast of Townshend Island at the Shoalwater Bay Training Area in Queensland, Australia, July 1, 2019. Green Bay, part of the Wasp Amphibious Ready Group, with embarked 31st MEU, is operating in the Indo-Pacific region to enhance interoperability with partners and serve as a ready-response force for any type of contingency, while simultaneously providing a flexible and lethal crisis response force ready to perform a wide range of military operations. (U.S. Marine Corps photo by Lance Cpl. Kyle P. Bunyi/Released)