181016-N-VK310-0019 EAST CHINA SEA (Oct. 16, 2018) Marines, assigned to the 31st Marine Expeditionary Unit (MEU), practice handling techniques on M4 carbines during a live-fire exercise aboard the amphibious assault ship USS Wasp (LHD 1). Wasp, flagship of the Wasp Amphibious Strike Group, with embarked 31st Marine Expeditionary Unit, is operating in the Indo-Pacific region to enhance interoperability with partners and serve as a ready-response force for any type of contingency. (U.S. Navy photo by Mass Communication Specialist 2nd Class Michael Molina)