Joining the Military Drill Instructor Sgt. Robert A. Atwood, Platoon 3052, Lima Company, 3rd Recruit Training Battalion, inspects a recruit of Lima Company, 3rd Recruit Training Battalion, May 7, 2016, on Parris Island. U.S. Marine Corps photo A Marine Explains What He Loves Most About Being A Drill Instructor By Task & Purpose on July 18, 2017 T&P on Facebook Looking for a great career? Or know another veteran, service member, or military spouse who is? Get started at Hirepurpose.