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U.S. Marine Corps amphibious combat vehicles with 3rd Assault Amphibian Battalion, 1st Marine Division, I Marine Expeditionary Force, maneuver in the open ocean during Quarterly Underway Amphibious Readiness Training 25.2 while underway in the Pacific Ocean, March 9, 2025. QUART is a joint training exercise designed to develop and sustain essential amphibious readiness skills for effective operations in maritime environments while reinforcing the Navy-Marine Corps partnership. (U.S. Marine Corps photo by Cpl. Oliver Nisbet)

U.S. Marine Corps amphibious combat vehicles with 3rd Assault Amphibian Battalion, 1st Marine Division, I Marine Expeditionary Force, maneuver in the open ocean during Quarterly Underway Amphibious Readiness Training 25.2 while underway in the Pacific Ocean, March 9, 2025. QUART is a joint training exercise designed to develop and sustain essential amphibious readiness skills for effective operations in maritime environments while reinforcing the Navy-Marine Corps partnership. (U.S. Marine Corps photo by Cpl. Oliver Nisbet)

Photo by Cpl. Oliver Nisbet

U.S. Marine Corps amphibious combat vehicles from 3rd Assault Amphibian Battalion, 1st Marine Division, I Marine Expeditionary Force, embark amphibious transport dock ship USS Somerset (LPD 25) during Quarterly Underway Amphibious Readiness Training 25.2 while underway in the Pacific Ocean, March 8, 2025. QUART is a joint training exercise designed to develop and sustain essential amphibious readiness skills for effective operations in maritime environments while reinforcing the Navy-Marine Corps partnership. (U.S. Marine Corps photo by Cpl. Oliver Nisbet)

U.S. Marine Corps amphibious combat vehicles from 3rd Assault Amphibian Battalion, 1st Marine Division, I Marine Expeditionary Force, embark amphibious transport dock ship USS Somerset (LPD 25) during Quarterly Underway Amphibious Readiness Training 25.2 while underway in the Pacific Ocean, March 8, 2025. QUART is a joint training exercise designed to develop and sustain essential amphibious readiness skills for effective operations in maritime environments while reinforcing the Navy-Marine Corps partnership. (U.S. Marine Corps photo by Cpl. Oliver Nisbet)

Photo by Cpl. Oliver Nisbet

A U.S. Marine Corps amphibious combat vehicle from 3rd Assault Amphibian Battalion, 1st Marine Division, I Marine Expeditionary Force, embarks amphibious transport dock ship USS Somerset (LPD 25) during Quarterly Underway Amphibious Readiness Training 25.2 while underway in the Pacific Ocean, March 8, 2025. QUART is a joint training exercise designed to develop and sustain essential amphibious readiness skills for effective operations in maritime environments while reinforcing the Navy-Marine Corps partnership. (U.S. Marine Corps photo by Cpl. Oliver Nisbet)

A U.S. Marine Corps amphibious combat vehicle from 3rd Assault Amphibian Battalion, 1st Marine Division, I Marine Expeditionary Force, embarks amphibious transport dock ship USS Somerset (LPD 25) during Quarterly Underway Amphibious Readiness Training 25.2 while underway in the Pacific Ocean, March 8, 2025. QUART is a joint training exercise designed to develop and sustain essential amphibious readiness skills for effective operations in maritime environments while reinforcing the Navy-Marine Corps partnership. (U.S. Marine Corps photo by Cpl. Oliver Nisbet)

Photo by Cpl. Oliver Nisbet

U.S. Marine Corps Maj. Gen. Thomas B. Savage, left, the commanding general of 1st Marine Division, gifts a 1st MARDIV coin and patch to Republic of Korea Marine Corps Maj. Gen. Lee Ho Jong, the commanding general of 1st Marine Division, ROK Marine Corps, during a meeting in Pohang, South Korea, March 7, 2025. Freedom Shield is an exercise that provides iterative opportunities for Republic of Korea Marine Corps and U.S. Marine Corps units to train together, improving their combined capabilities to deter threats and maintain peace on the Korean Peninsula. (Courtesy photo from Republic of Korea Marine Corps)

U.S. Marine Corps Maj. Gen. Thomas B. Savage, left, the commanding general of 1st Marine Division, gifts a 1st MARDIV coin and patch to Republic of Korea Marine Corps Maj. Gen. Lee Ho Jong, the commanding general of 1st Marine Division, ROK Marine Corps, during a meeting in Pohang, South Korea, March 7, 2025. Freedom Shield is an exercise that provides iterative opportunities for Republic of Korea Marine Corps and U.S. Marine Corps units to train together, improving their combined capabilities to deter threats and maintain peace on the Korean Peninsula. (Courtesy photo from Republic of Korea Marine Corps)

Photo by Courtesy

U.S. Marine Corps Lance Cpl. Robert Webb, a gunner with 1st Light Armored Reconnaissance Battalion, 1st Marine Division, attached to Marine Rotational Force-Southeast Asia, fires an M240B medium machine gun during the marine final exercise at Ban Chan Khrem, Chanthaburi, Thailand, March 6, 2025 during Exercise Cobra Gold 2025. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through our commitment to allies and partners in ensuring a free and open Indo-Pacific. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. Webb is a native of Pennsylvania. (U.S. Marine Corps photo by Cpl. Migel A. Reynosa)

U.S. Marine Corps Lance Cpl. Robert Webb, a gunner with 1st Light Armored Reconnaissance Battalion, 1st Marine Division, attached to Marine Rotational Force-Southeast Asia, fires an M240B medium machine gun during the marine final exercise at Ban Chan Khrem, Chanthaburi, Thailand, March 6, 2025 during Exercise Cobra Gold 2025. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through our commitment to allies and partners in ensuring a free and open Indo-Pacific. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. Webb is a native of Pennsylvania. (U.S. Marine Corps photo by Cpl. Migel A. Reynosa)

Photo by Cpl. Migel Reynosa

Republic of Korea Marines and Royal Thai Marines participate in the marine final exercise at Ban Chan Khrem, Chanthaburi, Thailand, March 6, 2025 during Exercise Cobra Gold 2025. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through our commitment to allies and partners in ensuring a free and open Indo-Pacific. (U.S. Marine Corps photo by Cpl. Migel A. Reynosa)

Republic of Korea Marines and Royal Thai Marines participate in the marine final exercise at Ban Chan Khrem, Chanthaburi, Thailand, March 6, 2025 during Exercise Cobra Gold 2025. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through our commitment to allies and partners in ensuring a free and open Indo-Pacific. (U.S. Marine Corps photo by Cpl. Migel A. Reynosa)

Photo by Cpl. Migel Reynosa

U.S. Marines with 1st Light Armored Reconnaissance Battalion, 1st Marine Division, attached to Marine Rotational Force-Southeast Asia, fire an M3E1 multipurpose anti-armor anti-personnel weapon system at Ban Chan Khrem, Chanthaburi, Thailand, March 6, 2025 during Exercise Cobra Gold 2025. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through our commitment to allies and partners in ensuring a free and open Indo-Pacific. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. (U.S. Marine Corps photo by Cpl. Migel A. Reynosa)

U.S. Marines with 1st Light Armored Reconnaissance Battalion, 1st Marine Division, attached to Marine Rotational Force-Southeast Asia, fire an M3E1 multipurpose anti-armor anti-personnel weapon system at Ban Chan Khrem, Chanthaburi, Thailand, March 6, 2025 during Exercise Cobra Gold 2025. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through our commitment to allies and partners in ensuring a free and open Indo-Pacific. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. (U.S. Marine Corps photo by Cpl. Migel A. Reynosa)

Photo by Cpl. Migel Reynosa

U.S. Marines with 1st Light Armored Reconnaissance Battalion, 1st Marine Division, attached to Marine Rotational Force-Southeast Asia, remove ammunition from an M3E1 multipurpose anti-armor anti-personnel weapon system at Ban Chan Khrem, Chanthaburi, Thailand, March 6, 2025 during Exercise Cobra Gold 2025. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through our commitment to allies and partners in ensuring a free and open Indo-Pacific. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. (U.S. Marine Corps photo by Cpl. Migel A. Reynosa)

U.S. Marines with 1st Light Armored Reconnaissance Battalion, 1st Marine Division, attached to Marine Rotational Force-Southeast Asia, remove ammunition from an M3E1 multipurpose anti-armor anti-personnel weapon system at Ban Chan Khrem, Chanthaburi, Thailand, March 6, 2025 during Exercise Cobra Gold 2025. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through our commitment to allies and partners in ensuring a free and open Indo-Pacific. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. (U.S. Marine Corps photo by Cpl. Migel A. Reynosa)

Photo by Cpl. Migel Reynosa

U.S. Marine Corps Lance Cpl. Gregory Barber, left, assistant gunner, Lance Cpl. Rogelio MontanoSoto, center, an assistant gunner, and Lance Cpl. Ralph Garcia, a squad leader, all with 1st Light Armored Reconnaissance Battalion, attached to Marine Rotational Force-Southeast Asia, fire an M252 81 mm mortar system during the Marine final exercise at Ban Chan Khrem, Chanthaburi, Thailand, March 6, 2025, during Exercise Cobra Gold 2025. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through a commitment to allies and partners in ensuring a free and open Indo-Pacific. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. (U.S. Marine Corps photo by Sgt. Shaina Jupiter)

U.S. Marine Corps Lance Cpl. Gregory Barber, left, assistant gunner, Lance Cpl. Rogelio MontanoSoto, center, an assistant gunner, and Lance Cpl. Ralph Garcia, a squad leader, all with 1st Light Armored Reconnaissance Battalion, attached to Marine Rotational Force-Southeast Asia, fire an M252 81 mm mortar system during the Marine final exercise at Ban Chan Khrem, Chanthaburi, Thailand, March 6, 2025, during Exercise Cobra Gold 2025. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through a commitment to allies and partners in ensuring a free and open Indo-Pacific. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. (U.S. Marine Corps photo by Sgt. Shaina Jupiter)

Photo by Sgt. Shaina Jupiter

U.S. Marines with 1st Light Armored Reconnaissance Battalion, attached to Marine Rotational Force-Southeast Asia, pose for a photo while disposing of mortar increments during the Marine final exercise at Ban Chan Khrem, Chanthaburi, Thailand, March 6, 2025, during Exercise Cobra Gold 2025. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through a commitment to allies and partners in ensuring a free and open Indo-Pacific. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. (U.S. Marine Corps photo by Sgt. Shaina Jupiter)

U.S. Marines with 1st Light Armored Reconnaissance Battalion, attached to Marine Rotational Force-Southeast Asia, pose for a photo while disposing of mortar increments during the Marine final exercise at Ban Chan Khrem, Chanthaburi, Thailand, March 6, 2025, during Exercise Cobra Gold 2025. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through a commitment to allies and partners in ensuring a free and open Indo-Pacific. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. (U.S. Marine Corps photo by Sgt. Shaina Jupiter)

Photo by Sgt. Shaina Jupiter

U.S. Marines and aircraft with Marine Aircraft Group 11, 3rd Marine Aircraft Wing, conduct a formation flight as part of Project Legacy off the coast of San Diego, March 4, 2025. The Project Legacy flight was a unique opportunity for all aircraft platforms across MAG-11 to fly as one team, practice tight formations, and take part in the documentation of a historical flight. (U.S. Marine Corps photo by Lance Cpl. Jennifer Sanchez)

U.S. Marines and aircraft with Marine Aircraft Group 11, 3rd Marine Aircraft Wing, conduct a formation flight as part of Project Legacy off the coast of San Diego, March 4, 2025. The Project Legacy flight was a unique opportunity for all aircraft platforms across MAG-11 to fly as one team, practice tight formations, and take part in the documentation of a historical flight. (U.S. Marine Corps photo by Lance Cpl. Jennifer Sanchez)

Photo by Lance Cpl. Jennifer Sanchez

Two U.S. Marine Corps UH-1Y Venom helicopters with Marine Light Attack Helicopter Squadron 169, Marine Aircraft Group 39, 3rd Marine Aircraft Wing, fly to the San Antonio-class amphibious transport dock ship USS Somerset (LPD 25) off the coast of Southern California, during Quarterly Underway Amphibious Readiness Training 25.2, March 4, 2025. QUART is a joint training exercise designed to develop and sustain essential amphibious readiness skills for effective operations in maritime environments while reinforcing the Navy-Marine Corps partnership. (U.S. Marine Corps photo by Staff Sgt. Gabriel A. Tavarez)

Two U.S. Marine Corps UH-1Y Venom helicopters with Marine Light Attack Helicopter Squadron 169, Marine Aircraft Group 39, 3rd Marine Aircraft Wing, fly to the San Antonio-class amphibious transport dock ship USS Somerset (LPD 25) off the coast of Southern California, during Quarterly Underway Amphibious Readiness Training 25.2, March 4, 2025. QUART is a joint training exercise designed to develop and sustain essential amphibious readiness skills for effective operations in maritime environments while reinforcing the Navy-Marine Corps partnership. (U.S. Marine Corps photo by Staff Sgt. Gabriel A. Tavarez)

Photo by Sgt. Gabriel Tavarez

A U.S. Navy aviation boatswains’ mate (handling) assigned to the San Antonio-class amphibious transport dock ship USS Somerset (LPD 25), signals a UH-1Y Venom helicopter with Marine Light Attack Helicopter Squadron 169, Marine Aircraft Group 39, 3rd Marine Aircraft Wing, while conducting flight deck landing qualifications during Quarterly Underway Amphibious Readiness Training 25.2 off the coast of Southern California, March 4, 2025. QUART is a joint training exercise designed to develop and sustain essential amphibious readiness skills for effective operations in maritime environments while reinforcing the Navy-Marine Corps partnership. (U.S. Marine Corps photo by Staff Sgt. Gabriel A. Tavarez)

A U.S. Navy aviation boatswains’ mate (handling) assigned to the San Antonio-class amphibious transport dock ship USS Somerset (LPD 25), signals a UH-1Y Venom helicopter with Marine Light Attack Helicopter Squadron 169, Marine Aircraft Group 39, 3rd Marine Aircraft Wing, while conducting flight deck landing qualifications during Quarterly Underway Amphibious Readiness Training 25.2 off the coast of Southern California, March 4, 2025. QUART is a joint training exercise designed to develop and sustain essential amphibious readiness skills for effective operations in maritime environments while reinforcing the Navy-Marine Corps partnership. (U.S. Marine Corps photo by Staff Sgt. Gabriel A. Tavarez)

Photo by Sgt. Gabriel Tavarez

U.S. Marine Corps Col. Jason C. Armas, commanding officer of Marine Rotational Force – Darwin, left, and Group Captain Melissa Neilson, the commander of Northern Command, right, hold wreaths during the Australian War Memorial Last Post Ceremony at Canberra, Australia, March 4, 2025. The Last Post Ceremony is a daily vigil held by the ADF to honor Australian service members killed in past military conflicts. (U.S. Marine Corps photo by Capt. John Fischer)

U.S. Marine Corps Col. Jason C. Armas, commanding officer of Marine Rotational Force – Darwin, left, and Group Captain Melissa Neilson, the commander of Northern Command, right, hold wreaths during the Australian War Memorial Last Post Ceremony at Canberra, Australia, March 4, 2025. The Last Post Ceremony is a daily vigil held by the ADF to honor Australian service members killed in past military conflicts. (U.S. Marine Corps photo by Capt. John Fischer)

Photo by Capt. John Fischer

Ambassador Robert F. Godec, the U.S. Ambassador to Thailand, observes a presentation during the Cobra Cold 25 CYBEREX, March 4, 2025. U.S. Marines with 9th Communication Battalion, I Marine Expeditionary Force Information Group, alongside service members with the Royal Thai Armed Forces, Japan Ground Self-Defense Force, Malaysia, Indonesia, Singapore, Australia, and Republic of Korea Marines, participate in the training event. The exercise focused on building and improving basic defensive cyber capabilities critical for enabling integrated deterrence against threat cyber operations. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through our commitment to allies and partners in ensuring a free and open Indo-Pacific. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. (Courtesy Asset)

Ambassador Robert F. Godec, the U.S. Ambassador to Thailand, observes a presentation during the Cobra Cold 25 CYBEREX, March 4, 2025. U.S. Marines with 9th Communication Battalion, I Marine Expeditionary Force Information Group, alongside service members with the Royal Thai Armed Forces, Japan Ground Self-Defense Force, Malaysia, Indonesia, Singapore, Australia, and Republic of Korea Marines, participate in the training event. The exercise focused on building and improving basic defensive cyber capabilities critical for enabling integrated deterrence against threat cyber operations. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through our commitment to allies and partners in ensuring a free and open Indo-Pacific. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. (Courtesy Asset)

Photo by Capt Mark McDonough

U.S. Marines with 9th Communication Battalion, I Marine Expeditionary Force Information Group, alongside service members with the Royal Thai Armed Forces, Japan Ground Self-Defense Force, Malaysia, Indonesia, Singapore, Australia, and Republic of Korea Marines, participate in a cyber exercise during Exercise Cobra Gold 2025, March 4, 2025. The exercise focused on building and improving basic defensive cyber capabilities critical for enabling integrated deterrence against threat cyber operations. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through our commitment to allies and partners in ensuring a free and open Indo-Pacific. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. (Courtesy Asset)

U.S. Marines with 9th Communication Battalion, I Marine Expeditionary Force Information Group, alongside service members with the Royal Thai Armed Forces, Japan Ground Self-Defense Force, Malaysia, Indonesia, Singapore, Australia, and Republic of Korea Marines, participate in a cyber exercise during Exercise Cobra Gold 2025, March 4, 2025. The exercise focused on building and improving basic defensive cyber capabilities critical for enabling integrated deterrence against threat cyber operations. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through our commitment to allies and partners in ensuring a free and open Indo-Pacific. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. (Courtesy Asset)

Photo by Capt Mark McDonough

U.S. Marines with 9th Communication Battalion, I Marine Expeditionary Force Information Group, alongside service members with the Royal Thai Armed Forces, Japan Ground Self-Defense Force, Malaysia, Indonesia, Singapore, Australia, and Republic of Korea Marines, participate in a cyber exercise during Exercise Cobra Gold 2025, March 4, 2025. The exercise focused on building and improving basic defensive cyber capabilities critical for enabling integrated deterrence against threat cyber operations. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through our commitment to allies and partners in ensuring a free and open Indo-Pacific. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. (Courtesy Asset)

U.S. Marines with 9th Communication Battalion, I Marine Expeditionary Force Information Group, alongside service members with the Royal Thai Armed Forces, Japan Ground Self-Defense Force, Malaysia, Indonesia, Singapore, Australia, and Republic of Korea Marines, participate in a cyber exercise during Exercise Cobra Gold 2025, March 4, 2025. The exercise focused on building and improving basic defensive cyber capabilities critical for enabling integrated deterrence against threat cyber operations. Cobra Gold is the largest joint and combined exercise in mainland Asia, held annually in Thailand, showcasing the U.S. commitment to the region by building interoperability, multilateral cooperative arrangements, and advancing common interests through our commitment to allies and partners in ensuring a free and open Indo-Pacific. MRF-SEA is a rotational unit derived from elements of I MEF executing a U.S. Marine Corps Forces, Pacific operational model that involves training events and exchanges with partner military subject matter experts, promotes security goals with allied and partner nations, and ensures a persistent I MEF stand-in presence west of the international date line. (Courtesy Asset)

Photo by CYBEREX participants prep for execution

A U.S. Marine with the 11th Marine Expeditionary Unit, I Marine Expeditionary Force, tests for contaminants while performing a chemical, biological, radiological and nuclear defense drill during Quarterly Underway Amphibious Readiness Training 25.2 at Marine Corps Base Camp Pendleton, California, March 4, 2025. QUART is a joint training exercise designed to develop and sustain essential amphibious readiness skills for effective operations in maritime environments while reinforcing the Navy-Marine Corps partnership. (U.S. Marine Corps photo by Cpl. Oliver Nisbet)

A U.S. Marine with the 11th Marine Expeditionary Unit, I Marine Expeditionary Force, tests for contaminants while performing a chemical, biological, radiological and nuclear defense drill during Quarterly Underway Amphibious Readiness Training 25.2 at Marine Corps Base Camp Pendleton, California, March 4, 2025. QUART is a joint training exercise designed to develop and sustain essential amphibious readiness skills for effective operations in maritime environments while reinforcing the Navy-Marine Corps partnership. (U.S. Marine Corps photo by Cpl. Oliver Nisbet)

Photo by Cpl. Oliver Nisbet

U.S. Marines with the 11th Marine Expeditionary Unit, I Marine Expeditionary Force, test for contaminants while performing a chemical, biological, radiological and nuclear defense drill during Quarterly Underway Amphibious Readiness Training 25.2 at Marine Corps Base Camp Pendleton, California, March 4, 2025. QUART is a joint training exercise designed to develop and sustain essential amphibious readiness skills for effective operations in maritime environments while reinforcing the Navy-Marine Corps partnership. (U.S. Marine Corps photo by Cpl. Oliver Nisbet)

U.S. Marines with the 11th Marine Expeditionary Unit, I Marine Expeditionary Force, test for contaminants while performing a chemical, biological, radiological and nuclear defense drill during Quarterly Underway Amphibious Readiness Training 25.2 at Marine Corps Base Camp Pendleton, California, March 4, 2025. QUART is a joint training exercise designed to develop and sustain essential amphibious readiness skills for effective operations in maritime environments while reinforcing the Navy-Marine Corps partnership. (U.S. Marine Corps photo by Cpl. Oliver Nisbet)

Photo by Cpl. Oliver Nisbet

U.S. Marines with the 11th Marine Expeditionary Unit, I Marine Expeditionary Force, test for contaminants while performing a chemical, biological, radiological and nuclear defense drill during Quarterly Underway Amphibious Readiness Training 25.2 at Marine Corps Base Camp Pendleton, California, March 4, 2025. QUART is a joint training exercise designed to develop and sustain essential amphibious readiness skills for effective operations in maritime environments while reinforcing the Navy-Marine Corps partnership. (U.S. Marine Corps photo by Cpl. Oliver Nisbet)

U.S. Marines with the 11th Marine Expeditionary Unit, I Marine Expeditionary Force, test for contaminants while performing a chemical, biological, radiological and nuclear defense drill during Quarterly Underway Amphibious Readiness Training 25.2 at Marine Corps Base Camp Pendleton, California, March 4, 2025. QUART is a joint training exercise designed to develop and sustain essential amphibious readiness skills for effective operations in maritime environments while reinforcing the Navy-Marine Corps partnership. (U.S. Marine Corps photo by Cpl. Oliver Nisbet)

Photo by Cpl. Oliver Nisbet

I Marine Expeditionary Force