U.S. Marines with the Ground Combat Element, Marine Rotational Force - Darwin, await to be inserted via MV-22 Ospreys during a company raid in Exercise Koolendong at Mount Bundey Training Area, NT, Australia, Aug. 23, 2019. Koolendong is a live-fire bilateral exercise conducted to increase interoperability between U.S. Marines and the Australian Defence Force. - U.S. Marines with the Ground Combat Element, Marine Rotational Force - Darwin, await to be inserted via MV-22 Ospreys during a company raid in Exercise Koolendong at Mount Bundey Training Area, NT, Australia, Aug. 23, 2019. Koolendong is a live-fire bilateral exercise conducted to increase interoperability between U.S. Marines and the Australian Defence Force.

An Australian Army soldier wears the Exercise Kowari 2015 patch after the exercise’s closing ceremony Sept. 12 at Larrakeyah Barracks, Darwin, Northern Territory, Australia, Sept. 16, 2015. In its second iteration, Kowari 15 was a trilateral environmental survival training opportunity hosted by Australia and included forces from the U.S., Australia and China simultaneously. - An Australian Army soldier wears the Exercise Kowari 2015 patch after the exercise’s closing ceremony Sept. 12 at Larrakeyah Barracks, Darwin, Northern Territory, Australia, Sept. 16, 2015. In its second iteration, Kowari 15 was a trilateral environmental survival training opportunity hosted by Australia and included forces from the U.S., Australia and China simultaneously.

Australian Army soldiers, assigned to 2nd Battalion, Royal Australian Regiment, and U.S. Marines, assigned to Battalion Landing Team, 2nd Battalion, 5th Marines, work together during an amphibious assault exercise during Talisman Sabre 2015 at Fog Bay, Australia, July 11, 2015. Talisman Sabre is a biennial exercise that provides an invaluable opportunity for nearly 30,000 U.S. and Australian Defence Force personnel to conduct operations in a combined, joint and interagency environment that will increase both countries’ ability to plan and execute a full range of operations from combat missions to humanitarian assistance efforts. - Australian Army soldiers, assigned to 2nd Battalion, Royal Australian Regiment, and U.S. Marines, assigned to Battalion Landing Team, 2nd Battalion, 5th Marines, work together during an amphibious assault exercise during Talisman Sabre 2015 at Fog Bay, Australia, July 11, 2015. Talisman Sabre is a biennial exercise that provides an invaluable opportunity for nearly 30,000 U.S. and Australian Defence Force personnel to conduct operations in a combined, joint and interagency environment that will increase both countries’ ability to plan and execute a full range of operations from combat missions to humanitarian assistance efforts.