A Marine with Combat Logistics Battalion 31 fires a

A Marine with Combat Logistics Battalion 31 fires a MK19 40 mm automatic grenade launcher during machine gun and heavy-weapons training at Camp Hansen, Okinawa, Japan, March 7, 2019. During the training, the CLB-31 Marines learned the fundamentals to act as safety officers for upcoming unit-wide training. CLB-31 is the Logistics Combat Element for the 31st Marine Expeditionary Unit. The 31st MEU, the Marine Corps’ only continuously forward-deployed MEU, 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 Lance Cpl. Kyle P. Bunyi/ Released)