U.S. Secretary of the Navy Carlos Del Toro greets U.S. Marine Corps Col. Christopher Steele, the commanding officer of Marine Rotational Force-Darwin (MRF-D) 22, during a visit with MRF-D 22 at Royal Australian Air Force Base Darwin, June 18, 2022. Secretary Del Toro visited Marines and Sailors with MRF-D 22 and Australian Defence Force personnel as part of the Indo-Pacific battlefield circulation. (U.S. Marine Corps photo by Cpl. Emeline Molla) - U.S. Secretary of the Navy Carlos Del Toro greets U.S. Marine Corps Col. Christopher Steele, the commanding officer of Marine Rotational Force-Darwin (MRF-D) 22, during a visit with MRF-D 22 at Royal Australian Air Force Base Darwin, June 18, 2022. Secretary Del Toro visited Marines and Sailors with MRF-D 22 and Australian Defence Force personnel as part of the Indo-Pacific battlefield circulation. (U.S. Marine Corps photo by Cpl. Emeline Molla)

A U.S. Marine conducts a joint range brief at Mount Bundey Training Area, Northern Territory, Australia, Sept. 5. - A U.S. Marine conducts a joint range brief at Mount Bundey Training Area, Northern Territory, Australia, Sept. 5.

U.S. Marine Corps Staff Sgt. Micheal Mendoza, a joint terminal attack controller with Command Element, Marine Rotational Force - Darwin, left, and Australian Defence Force Sgt. Aaron Costas, with 102nd Coral Battery, communicate to a B-1B Lancer pilot at Mount Bundey Training Area, Northern Territory, Australia, Aug. 14, 2020. The combined training allowed both Marines and Australian Defence Force members to learn how to communicate effectively to be ready to work together to to contribute to regional security. (U.S. Marine Corps photo by Cpl. Sarah Marshall) - U.S. Marine Corps Staff Sgt. Micheal Mendoza, a joint terminal attack controller with Command Element, Marine Rotational Force - Darwin, left, and Australian Defence Force Sgt. Aaron Costas, with 102nd Coral Battery, communicate to a B-1B Lancer pilot at Mount Bundey Training Area, Northern Territory, Australia, Aug. 14, 2020. The combined training allowed both Marines and Australian Defence Force members to learn how to communicate effectively to be ready to work together to to contribute to regional security. (U.S. Marine Corps photo by Cpl. Sarah Marshall)

U.S. Marines setup the Ground Data Terminal at a RQ-21A Blackjack spoke site in Bradshaw Field Training Area, Northern Territory, Australia, Aug. 9. - U.S. Marines setup the Ground Data Terminal at a RQ-21A Blackjack spoke site in Bradshaw Field Training Area, Northern Territory, Australia, Aug. 9.

U.S. Marines await to be inserted via MV-22 Ospreys during a company raid in Exercise Koolendong at Mount Bundey Training Area, NT, Australia, Aug. 23. - U.S. Marines await to be inserted via MV-22 Ospreys during a company raid in Exercise Koolendong at Mount Bundey Training Area, NT, Australia, Aug. 23.

Brigadier Damian Cantwell, the Exercise Kowari commander, gives a patch to all the participants of Exercise Kowari at Larrakeyah Barracks, Northern Territory, Australia, August 26, 2016. The purpose of Exercise Kowari is to enhance the United States, Australia, and China’s friendship and trust, through trilateral cooperation in the Asia-Pacific and Indian Ocean Rim regions. - Brigadier Damian Cantwell, the Exercise Kowari commander, gives a patch to all the participants of Exercise Kowari at Larrakeyah Barracks, Northern Territory, Australia, August 26, 2016. The purpose of Exercise Kowari is to enhance the United States, Australia, and China’s friendship and trust, through trilateral cooperation in the Asia-Pacific and Indian Ocean Rim regions.

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U.S. Marine Corps Cpl. Cason Cunningham, a machine gun squad leader with Company A, 1st Battalion, 4th Marine Regiment, Marine Rotational Force – Darwin, congratulates a Timor-Leste Defence Force member for excelling in room-clearing operations during Exercise Koa Moana 15.2 in Dili, Timor-Leste, June 24. The Marines conducted a bilateral exercise with one platoon of the Timor-Leste Defence Force’s land component of the naval force and one platoon of their Marines, focusing on the fundamentals of squad and platoon-level tasks. The bilateral training exercise allows the Marines to share their tactics, techniques and procedures with our international partner, strengthening our understanding of each other’s Defence forces standard operating procedures. - U.S. Marine Corps Cpl. Cason Cunningham, a machine gun squad leader with Company A, 1st Battalion, 4th Marine Regiment, Marine Rotational Force – Darwin, congratulates a Timor-Leste Defence Force member for excelling in room-clearing operations during Exercise Koa Moana 15.2 in Dili, Timor-Leste, June 24. The Marines conducted a bilateral exercise with one platoon of the Timor-Leste Defence Force’s land component of the naval force and one platoon of their Marines, focusing on the fundamentals of squad and platoon-level tasks. The bilateral training exercise allows the Marines to share their tactics, techniques and procedures with our international partner, strengthening our understanding of each other’s Defence forces standard operating procedures.

U.S. Marines, Cpl. Shea P. Nolan and Lance Cpl. Edward Y. Cho, stand in front of a Secure, Mobile, Anti-Jam, Reliable, Tactical-Terminal during exercise Talisman Sabre 2015 at Robertson Barracks, Australia, July 6. The exercise is designed to improve U.S.-Australian combat training, readiness and interoperability. Nolan, from Wallington, New Jersey, is a tropospheric scatter radio multi-channel equipment operator. Cho, from Dix Hills, New York, is a satellite communications operator and maintainer. They are with 7th Communication Battalion, III Marine Expeditionary Force Headquarters Group, III MEF, currently attached to 3rd Marine Expeditionary Brigade. - U.S. Marines, Cpl. Shea P. Nolan and Lance Cpl. Edward Y. Cho, stand in front of a Secure, Mobile, Anti-Jam, Reliable, Tactical-Terminal during exercise Talisman Sabre 2015 at Robertson Barracks, Australia, July 6. The exercise is designed to improve U.S.-Australian combat training, readiness and interoperability. Nolan, from Wallington, New Jersey, is a tropospheric scatter radio multi-channel equipment operator. Cho, from Dix Hills, New York, is a satellite communications operator and maintainer. They are with 7th Communication Battalion, III Marine Expeditionary Force Headquarters Group, III MEF, currently attached to 3rd Marine Expeditionary Brigade.