Pushup Power Marine Corps Staff Sgt. Kevin Dunbar does pushups during the Commanding General's Fitness Cup Challenge at Marine Corps Recruit Depot Parris Island, S.C., March 25, 2016. Dunbar is a senior drill instructor assigned to Mike Company, 3rd Recruit Training Battalion, Recruit Training Regiment. Marine Corps photo by Lance Cpl. Richard Currier SHARE IMAGE: Download Image: Full Size (1.18 MB) Photo By: Lance Cpl. Richard Currier VIRIN: 160325-M-UH847-051B.JPG Photo Gallery