Muddy Marines Marine Corps recruits practice basic fighting stances during a martial arts training session at Marine Corps Recruit Depot Parris Island, S.C., Dec. 30, 2019. SHARE IMAGE: Download Image: Full Size (3.28 MB) Tags: marine corps Photo By: Marine Corps Gunnery Sgt. Tyler Hlavac VIRIN: 191230-M-ZL728-032Y.JPG Photo Gallery