U.S. Marine Corps Lt. Col. Eric Dougherty, battalion

U.S. Marine Corps Lt. Col. Eric Dougherty, battalion commander, 1st Battalion, 4th Marine Regiment, Marine Rotational Force – Darwin (MRF-D), braces after firing an 81 mm mortar round during Exercise Predator Walk in Mount Bundey Training Area, Northern Territory, Australia, May 25. Training was implemented to encompass a full Marine Air-Ground Task Force (MAGTF) during Predator Walk. MRF-D exercises the combined abilities of a MAGTF with Australian allies. Dougherty is a native of Chicago. (U.S. Marine Corps photo by Lance Cpl. Makenzie Fallon/Released)