Dirty Work Marines work to place an M777 howitzer at a firing point during Exercise Koolendong at Mount Bundey Training Area, Australia, Aug. 30, 2019. The exercise focuses on increasing interoperability between U.S. Marines and the Australian Defense Force. SHARE IMAGE: Download Image: Full Size (1.85 MB) Tags: Marine Corps, Partnerships, Exercise Koolendong Photo By: Marine Corps Cpl. Kallahan Morris VIRIN: 190903-M-KM064-004A.JPG Photo Gallery