U.S. Marine Corps 1st Lt. David Rooks, an operations advisor with the 3rd Battalion, 3rd Marine Regiment Embedded Training Team (ETT), determines target placement at the Shamshad target range in Afghanistan, Feb. 21, 2012.
Marine instructors assigned to the ETT concentrate on developing Afghan National Army noncommissioned officers as machine gun team leaders. (DoD photo by Cpl. Reece Lodder, U.S. Marine Corps/Released). Original public domain image from Flickr