U.S. Marines with 1st Battalion, 1st Marine Regiment,

U.S. Marines with 1st Battalion, 1st Marine Regiment, members of the Australian Army with Battle Group Waratah, 8th Brigade, and members of the Japan Ground Self-Defense Force discuss future plans for Exercise Southern Jackaroo at Shoalwater Bay, Queensland, Australia, May 18, 2016. Exercise Southern Jackaroo is a combined training opportunity during Marine Rotational Force – Darwin (MRF-D). MRF-D is a six-month deployment of Marines into Darwin, Australia, where they will conduct exercises and train with the Australian Defence Forces, strengthening the U.S.-Australia alliance. (U. S. Marine Corps Photo by MCIPAC Combat Camera Lance Cpl. Osvaldo L. Ortega III/Released)