3rd Battalion, 5th Marine Regiment

190203-N-LI768-1095 PACIFIC OCEAN (Feb. 3, 2019) – Lt. Gen. Joseph Osterman, commanding general, I Marine Expeditionary Force, speaks with Japan Ground Self-Defense Force soldiers during a tour aboard the amphibious transport dock ship USS Somerset (LPD 25) during Exercise Iron Fist 2019. Exercise Iron Fist 2019 is an annual, multilateral training exercise where U.S. and Japanese service members train together, share techniques, tactics and procedures to improve their combine operational capabilities. (U.S. Navy photo by Mass Communication Specialist 2nd Class Devin M. Langer)

190203-N-LI768-1177 PACIFIC OCEAN (Feb. 3, 2019) – Japan Ground Self-Defense Force soldiers receive a tour of the well deck aboard the amphibious transport dock ship USS Somerset (LPD 25) during Exercise Iron Fist 2019. Exercise Iron Fist 2019 is an annual, multilateral training exercise where U.S. and Japanese service members train together, share techniques, tactics and procedures to improve their combine operational capabilities. (U.S. Navy photo by Mass Communication Specialist 2nd Class Devin M. Langer)

190204-N-LI768-1098 CAMP PENDLETON, Calif. (Feb. 4, 2019) – A Japan Ground Self-Defense Force (JGSDF) soldier prepares a mortar system after departing a landing craft, air cushion during Exercise Iron Fist 2019. Exercise Iron Fist 2019 is an annual, multilateral training exercise where U.S. and Japanese service members train together, share techniques, tactics and procedures to improve their combine operational capabilities. (U.S. Navy photo by Mass Communication Specialist 2nd Class Devin M. Langer)

U.S. Marine Corps Cpl. Daniel A. Vazquez, a machine gunner with 1st Battalion, 5th Marine Regiment, 1st Marine Division, looks out a window as he provides security during an integrated training exercise at Marine Corps Air Ground Combat Center, Twentynine Palms, California, May 14, 2019. The exercise was designed to give the exercise force the opportunity to plan and execute multiple types of operations, conduct detailed fire support, planning and coordination for each operation. (U.S. Marine Corps photo by Cpl. Robert G. Gavaldon)

U.S. Marine Corps Lance Cpl. David J. Salazarquintero, a rifleman with 1st Battalion, 5th Marine Regiment, 1st Marine Division, patrols the urban training area while being yelled at by simulated local actors during an integrated training exercise at Marine Corps Air Ground Combat Center, Twentynine Palms, California, May 14, 2019. The exercise was designed to give the exercise force the opportunity to plan and execute multiple types of operations, conduct detailed fire support, planning and coordination for each operation. (U.S. Marine Corps photo by Cpl. Robert G. Gavaldon)

U.S. Marine Corps Lance Cpl. Matthew K. Fischbach, a rifleman with 1st Battalion, 5th Marine Regiment, 1st Marine Division, patrols to an urban training area during an integrated training exercise at Marine Corps Air Ground Combat Center, Twentynine Palms, California, May 14, 2019. The exercise was designed to give the exercise force the opportunity to plan and execute multiple types of operations, conduct detailed fire support, planning and coordination for each operation. (U.S. Marine Corps photo by Cpl. Robert G. Gavaldon)

U.S. Marine Corps Staff Sgt. Shane Armstrong, an artillery cannon operator with 5th Battalion, 11th Marine Regiment, 1st Marine Division, checks a stack of M270 rockets during exercise Steel Knight (SK) 19 at Marine Corps Base Camp Pendleton, California, Dec. 7, 2018. SK19 is an annual training exercise and assesses the 1st Marine Division’s ability to conduct ground combat operations against a peer or near-peer adversary. The exercise challenges the division’s commanders, staff, and units in a dynamic scenario against a reactive and opposing force to refine the units’ command and control, interoperability, and fundamental warfighting skills. (U.S. Marine Corps photo by Cpl. Audrey M. C. Rampton)

A U.S. Marine Corps M142 High-mobility artillery rocket system fires a M270 rocket during exercise Steel Knight (SK) 19 at Army Facility Dugway Proving Ground, Utah, Dec. 7, 2018. SK19 is an annual training exercise and assesses the 1st Marine Division’s ability to conduct ground combat operations against a peer or near-peer adversary. The exercise challenges the division’s commanders, staff, and units in a dynamic scenario against a reactive and opposing force to refine the units’ command and control, interoperability, and fundamental warfighting skills. (U.S. Marine Corps photo by Cpl. Audrey M. C. Rampton)

U.S. Marine Corps Cpl. Ramon Trevino, an infantry Marine with 1st Battalion, 5th Marine Regiment, participates in a decontamination drill during Steel Knight 2019 (SK19) on Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., Dec. 06, 2018. SK19 is an annual training exercise and assesses the 1st Marine Division’s ability to conduct ground combat operations against a peer or near-peer adversary. The exercise challenges the division’s commanders, staff, and units in a dynamic scenario against a reactive and opposing force to refine the units’ command and control, interoperability, and fundamental warfighting skills. (U.S. Marine Corps photo by Cpl. Rhita Daniel)

U.S. Marine Corps LCpl. Jeremy Yeager, a machine gunner with 1st Battalion, 5th Marine Regiment, participates in a simulated air assault during Steel Knight 2019 (SK19) on Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., Dec. 05, 2018. SK19 is an annual training exercise and assesses the 1st Marine Division’s ability to conduct ground combat operations against a peer or near-peer adversary. The exercise challenges the division’s commanders, staff, and units in a dynamic scenario against a reactive and opposing force to refine the units’ command and control, interoperability, and fundamental warfighting skills. (U.S. Marine Corps photo by Cpl. Rhita Daniel)

U.S. Marines with 1st Battalion, 5th Marine Regiment, participate in a simulated air assault during Steel Knight 2019 (SK19) on Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., Dec. 05, 2018. SK19 is an annual training exercise and assesses the 1st Marine Division’s ability to conduct ground combat operations against a peer or near-peer adversary. The exercise challenges the division’s commanders, staff, and units in a dynamic scenario against a reactive and opposing force to refine the units’ command and control, interoperability, and fundamental warfighting skills. (U.S. Marine Corps photo by Cpl. Rhita Daniel)

U.S. Marine Corps Lt. Col. John Gianopoulos, the commanding officer of 5th Marine Regiment, 1st Marine Division, speaks during the 5th Marines Vietnam War Memorial unveiling ceremony in the Camp San Mateo Memorial Garden at Marine Corps Base Camp Pendleton, Calif., May 28, 2018. The memorial is inscribed with the names of 2,706 Marines and sailors who gave their lives serving our great nation. (U.S. photo by Lance Cpl. Rhita Daniel)

U.S. Marine Corps Cpl. Ramon Trevino, an infantry Marine with 1st Battalion, 5th Marine Regiment, participates in a training flight in preparation for Steel Knight 2019 on Marine Corps Base Camp Pendleton, Calif., Nov. 27, 2018. SK19 is an annual training exercise and assesses the 1st Marine Division’s ability to conduct ground combat operations against a peer or near-peer adversary. The exercise challenges the division’s commanders, staff, and units in a dynamic scenario against a reactive and opposing force to refine the units’ command and control, interoperability, and fundamental warfighting skills. (U.S. Marine Corps photo by Cpl. Rhita Daniel)

A U.S. Marine with the 1st Battalion, 5th Marine Regiment participates in a training flight in preparation for Steel Knight 2019 on Marine Corps Base Camp Pendleton, Nov. 27, 2018. SK19 is an annual training exercise and assesses the 1st marine Division’s ability to conduct ground combat operations against a peer or near-peer adversary. The exercise challenges the division’s commanders, staff, and units in a dynamic in a dynamic scenario against a reactive and thinking opposing force to refine the units’ command and control, interoperability, and fundamental warfighting skills. (U.S. Marine Corps photo by Cpl. Rhita Daniel)