Marine Corps Lance Cpl. Derrel Pearcy, a machine gunner with 3d Platoon, Lima Company, 3d Battalion, 7th Marine Regiment, Ground Combat Element, Marine Rotational Force-Darwin (MRF-D) 22, patrols during a simulated combat defense as part of exercise Southern Jackaroo 22 at Shoalwater Bay Training Area, May 22, 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.

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Keywords: -, .., australia, darwin, force, jackaroo, marine, marines, mrf-, rotational, southern, usmcnews