180311-N-NM806-0097 EAST CHINA SEA (March 11, 2018) Naval Aircrewman (Helicopter) 2nd Class Ryan Siner, assigned to the "Island Knights" of Helicopter Sea Combat Squadron (HSC) 25, fires an M2HB .50-caliber machine gun during a live-fire exercise aboard an MH-60S Sea Hawk helicopter. The Wasp Expeditionary Strike Group (ESG) is conducting a regional patrol designed to strengthen regional alliances, provide rapid-response capability and advance the up-gunned ESG Concept. (U.S. Navy photo by Mass Communication Specialist 3rd Class Taylor King/Released)