Petty Officer 3rd Class Matthew Lewis, a hospital corpsman
Summary
Petty Officer 3rd Class Matthew Lewis, a hospital corpsman with the 31st Marine Expeditionary Unit, listens as U.S. Navy medical providers with the 31st MEU, Combat Logistics Battalion 31 and the amphibious assault ship USS Wasp (LHD 1) assess the condition of simulated casualties during a mass-casualty exercise while underway in the East China Sea, Feb. 4, 2019. During the exercise, dubbed “Nightingale,” Navy doctors and hospital corpsmen triaged simulated casualties to refine their ability to respond in the event of a mass-casualty scenario. The 31st MEU, the Marine Corps’ only continuously forward-deployed MEU partnering with the Wasp Amphibious Ready Group, provides a flexible and lethal force ready to perform a wide range of military operations as the premier crisis response force in the Indo-Pacific region. (U.S. Marine Corps photo by Gunnery Sgt. T. T. Parish/Released)