U.S. Marines with Lima Co., 3rd Battalion, 1st Marine Regiment, Marine Rotational Force – Darwin 23 engage simulated targets during Exercise Southern Jackaroo 23 in Townsville Field Training Area, Queensland, Australia, July 1, 2023. Southern Jackaroo is a trilateral exercise with MRF-D, Japanese Ground Self-Defense Force, and Australian Defence Force, with Republic of Korea observers, working together to achieve fire, maneuver, and communications interoperability objectives. - U.S. Marines with Lima Co., 3rd Battalion, 1st Marine Regiment, Marine Rotational Force – Darwin 23 engage simulated targets during Exercise Southern Jackaroo 23 in Townsville Field Training Area, Queensland, Australia, July 1, 2023. Southern Jackaroo is a trilateral exercise with MRF-D, Japanese Ground Self-Defense Force, and Australian Defence Force, with Republic of Korea observers, working together to achieve fire, maneuver, and communications interoperability objectives.

U.S. Marine Corps Lt. Col. Michael O’Brien, Commanding Officer of Marine Fighter Attack Squadron 314, Marine Aircraft Group 11, 3rd Marine Aircraft Wing, discusses the capabilities of a U.S. Marine Corps F-35C Lightning II aircraft with Air Commodore Peter Robinson, Commander of Air Combat Group, Royal Australian Air Force, and Wing Commander Adrian Kiely, Commanding Officer of RAAF No. 3 Squadron, while touring RAAF Base Williamtown, New South Wales, Australia, June 28, 2023. The tour allowed for U.S. Marine Corps and Australian military leadership to view on-going unit-level and bilateral training events designed to enhance U.S.-Australian relationships and further develop and sustain capabilities in the Indo-Pacific Region. O’Brien is a Harrisburg, Pennsylvania native. - U.S. Marine Corps Lt. Col. Michael O’Brien, Commanding Officer of Marine Fighter Attack Squadron 314, Marine Aircraft Group 11, 3rd Marine Aircraft Wing, discusses the capabilities of a U.S. Marine Corps F-35C Lightning II aircraft with Air Commodore Peter Robinson, Commander of Air Combat Group, Royal Australian Air Force, and Wing Commander Adrian Kiely, Commanding Officer of RAAF No. 3 Squadron, while touring RAAF Base Williamtown, New South Wales, Australia, June 28, 2023. The tour allowed for U.S. Marine Corps and Australian military leadership to view on-going unit-level and bilateral training events designed to enhance U.S.-Australian relationships and further develop and sustain capabilities in the Indo-Pacific Region. O’Brien is a Harrisburg, Pennsylvania native.

A U.S. Marine Corps MV-22 Osprey from Marine Medium Tiltrotor Squadron 268 Reinforced, Aviation Combat Element, Marine Rotational Force-Darwin 22, refuels in flight during a Transpacific flight over Queensland, Australia, Sept. 13, 2022. TRANSPAC was a long-range tactical redeployment from Darwin to Hawaii with stops in Fiji, American Samoa, and Kiribati. - A U.S. Marine Corps MV-22 Osprey from Marine Medium Tiltrotor Squadron 268 Reinforced, Aviation Combat Element, Marine Rotational Force-Darwin 22, refuels in flight during a Transpacific flight over Queensland, Australia, Sept. 13, 2022. TRANSPAC was a long-range tactical redeployment from Darwin to Hawaii with stops in Fiji, American Samoa, and Kiribati.

U.S. Marines with India Co., 3rd Battalion, 7th Marine Regiment, Ground Combat Element, Marine Rotational Force-Darwin 22, arrive at South Goulburn Island, Australia via U.S. Marine Corps MV-22 Ospreys with Marine Medium Tiltrotor Squadron 268 reinforced, Aviation Combat Element, MRF-D 22, Aug. 31, 2022. The Expeditionary Advanced Base Operations exercise was a force-on-force training that exercised the MRF-D’s ability to forward deploy and establish expeditionary advanced bases. - U.S. Marines with India Co., 3rd Battalion, 7th Marine Regiment, Ground Combat Element, Marine Rotational Force-Darwin 22, arrive at South Goulburn Island, Australia via U.S. Marine Corps MV-22 Ospreys with Marine Medium Tiltrotor Squadron 268 reinforced, Aviation Combat Element, MRF-D 22, Aug. 31, 2022. The Expeditionary Advanced Base Operations exercise was a force-on-force training that exercised the MRF-D’s ability to forward deploy and establish expeditionary advanced bases.

U.S Marines with Marine Rotational Force–Darwin 22 secure a possible amphibious landing site during the Operational Regional War Fighter at Cowley Beach Training Area, Queensland. Operation Regional War Fighter supports the Australian Army’s recent focus on enhancing capabilities in the jungle, which mimics conditions seen in the nearby region. - U.S Marines with Marine Rotational Force–Darwin 22 secure a possible amphibious landing site during the Operational Regional War Fighter at Cowley Beach Training Area, Queensland. Operation Regional War Fighter supports the Australian Army’s recent focus on enhancing capabilities in the jungle, which mimics conditions seen in the nearby region.

U.S. Marines with Marine Rotational Force-Darwin 22 and Australian Army soldiers secure an objective during exercise Predator's Run 22 at Mount Bundey Training Area, NT, Australia, Aug. 27, 2022. Predator's Run 22 is a multinational exercise that simulates littoral combined arms maneuver in a large-scale force-on-force environment. - U.S. Marines with Marine Rotational Force-Darwin 22 and Australian Army soldiers secure an objective during exercise Predator's Run 22 at Mount Bundey Training Area, NT, Australia, Aug. 27, 2022. Predator's Run 22 is a multinational exercise that simulates littoral combined arms maneuver in a large-scale force-on-force environment.

U.S. Marine Corps Lance Cpl. Dexter Madrigal, a rifleman with 3d Battalion, 7th Marine Regiment, Ground Combat Element, Marine Rotational Force-Darwin 22, and Australian Army Pvt. Daniel Rochford, with 16th Battalion, Royal Western Australian Regiment, pose for a photograph under the stars after completing an airfield seizure event as part of exercise Koolendong 22, at Royal Australian Air Force Base Curtin, WA, Australia, July 19, 2022. Exercise Koolendong 22 is a combined and joint force exercise focused on expeditionary advanced base operations conducted by U.S. Marines, U.S. Soldiers, U.S. Airmen, and Australian Defence Force personnel. - U.S. Marine Corps Lance Cpl. Dexter Madrigal, a rifleman with 3d Battalion, 7th Marine Regiment, Ground Combat Element, Marine Rotational Force-Darwin 22, and Australian Army Pvt. Daniel Rochford, with 16th Battalion, Royal Western Australian Regiment, pose for a photograph under the stars after completing an airfield seizure event as part of exercise Koolendong 22, at Royal Australian Air Force Base Curtin, WA, Australia, July 19, 2022. Exercise Koolendong 22 is a combined and joint force exercise focused on expeditionary advanced base operations conducted by U.S. Marines, U.S. Soldiers, U.S. Airmen, and Australian Defence Force personnel.

Children from Darwin, NT, Australia, watch U.S. Marines with Marine Rotational Force-Darwin (MRF-D) 22, march in a parade during the 107th Commemorative Service in honor of Australian and New Zealand Army Corps (ANZAC) Day on April 25, 2022. U.S. Marines with MRF-D 22 participated in Anzac Day ceremonies and celebrations to commemorate the first major military action fought by Australian and New Zealand forces during the First World War, and to join in recognition of the sacrifices and service of the ANZAC forces. - Children from Darwin, NT, Australia, watch U.S. Marines with Marine Rotational Force-Darwin (MRF-D) 22, march in a parade during the 107th Commemorative Service in honor of Australian and New Zealand Army Corps (ANZAC) Day on April 25, 2022. U.S. Marines with MRF-D 22 participated in Anzac Day ceremonies and celebrations to commemorate the first major military action fought by Australian and New Zealand forces during the First World War, and to join in recognition of the sacrifices and service of the ANZAC forces.

A U.S. Marine with 3d Platoon, Lima Company, 3d Battalion, 7th Marine Regiment, Ground Combat Element, Marine Rotational Force-Darwin 22, helps a simulated casualty off of the battlefield during a simulated combat defense as part of exercise Southern Jackaroo 22 at Shoalwater Bay Training Area, May 21, 2022. Southern Jackaroo is a multilateral exercise carried out by Marines with MRF-D, the Australian Army and Japan Ground Self-Defense Force soldiers, focusing on live-fire and combined arms training. (U.S. Marine Corps Photo by Cpl. Cedar Barnes) - A U.S. Marine with 3d Platoon, Lima Company, 3d Battalion, 7th Marine Regiment, Ground Combat Element, Marine Rotational Force-Darwin 22, helps a simulated casualty off of the battlefield during a simulated combat defense as part of exercise Southern Jackaroo 22 at Shoalwater Bay Training Area, May 21, 2022. Southern Jackaroo is a multilateral exercise carried out by Marines with MRF-D, the Australian Army and Japan Ground Self-Defense Force soldiers, focusing on live-fire and combined arms training. (U.S. Marine Corps Photo by Cpl. Cedar Barnes)