(From left) U.S. Marine Corps Lance Cpl. Thomas Diffley, Pfc. Elijah Stewart and Lance Cpl. Nicklas Martin, expeditionary firefighting and rescue specialists with Headquarters and Headquarters Squadron, Marine Corps Installations Pacific, pose for an environmental photo on Marine Corps Air Station Futenma, Okinawa, Japan, April 7, 2021. EFR specialist Marines with H&HS provide aircraft rescue and firefighting services in support of airfield operations and respond to any fire-related emergencies and situations with a maximum response time of five minutes. Stewart is a native of Independence, Missouri, Diffley is a native of Dallas, Texas and Corkern is a native of Seattle, Washington. - (From left) U.S. Marine Corps Lance Cpl. Thomas Diffley, Pfc. Elijah Stewart and Lance Cpl. Nicklas Martin, expeditionary firefighting and rescue specialists with Headquarters and Headquarters Squadron, Marine Corps Installations Pacific, pose for an environmental photo on Marine Corps Air Station Futenma, Okinawa, Japan, April 7, 2021. EFR specialist Marines with H&HS provide aircraft rescue and firefighting services in support of airfield operations and respond to any fire-related emergencies and situations with a maximum response time of five minutes. Stewart is a native of Independence, Missouri, Diffley is a native of Dallas, Texas and Corkern is a native of Seattle, Washington.

U.S. Marine Corps Sgt. Garald John, combat marksmanship trainer, Headquarters and Support Battalion, Marine Corps Base Camp Pendleton, assesses Marines while they “snap in” at Marine Corps Base Camp Pendleton, California, Oct. 5, 2018. "Snapping in" is the term used to describe practicing dry-firing with an empty weapon before live-firing. - U.S. Marine Corps Sgt. Garald John, combat marksmanship trainer, Headquarters and Support Battalion, Marine Corps Base Camp Pendleton, assesses Marines while they “snap in” at Marine Corps Base Camp Pendleton, California, Oct. 5, 2018. "Snapping in" is the term used to describe practicing dry-firing with an empty weapon before live-firing.

Marines with 2nd Platoon, 2nd Force Reconnaissance Company, II Marine Expeditionary Force are instructed on the course of fire before participating in a live-fire exercise during a close-quarters combat tactics course at range K-501A aboard Marine Corps Base Camp Lejeune, N.C., April 14, 2015. Marines built upon training in techniques and tactics in preparation for the 22nd Marine Expeditionary Unit slated to deploy in 2016. - Marines with 2nd Platoon, 2nd Force Reconnaissance Company, II Marine Expeditionary Force are instructed on the course of fire before participating in a live-fire exercise during a close-quarters combat tactics course at range K-501A aboard Marine Corps Base Camp Lejeune, N.C., April 14, 2015. Marines built upon training in techniques and tactics in preparation for the 22nd Marine Expeditionary Unit slated to deploy in 2016.