A U.S. Marine with 3rd Battalion, 3rd Marine Regiment, Marine Rotational Force – Darwin (MRF-D), fires his weapon during squad attacks at Kangaroo Flats Training Area, Northern Territory, Australia, July 25, 2019.
The MRF-D rotation is a competent expeditionary fighting force that is technically proficient and capable of responding to any crisis or contingency. (U.S. Marine Corps photo by Staff Sgt. Jordan Gilbert). Original public domain image from Flickr