9 mm ammunition sits inside an ammunition canister during a live fire range at Camp Hansen, Okinawa, Japan, Jan. 10, 2019. - 9 mm ammunition sits inside an ammunition canister during a live fire range at Camp Hansen, Okinawa, Japan, Jan. 10, 2019. S-4 logisticians with the 31st Marine Expeditionary Unit ensure the proper caliber and quantity of ammunition is available for Marines to effectively train. 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. Tanner D. Lambert)