Corps Columns Marine Corps recruits stand in columns of two as a drill instructor keeps a close watch during a confidence course at Marine Corps Recruit Depot San Diego, Sept. 24, 2019. SHARE IMAGE: Download Image: Small (757.76 KB)| Medium (2457.6 KB)| Full Size (2.87 MB) Tags: Marine Corps Photo By: Marine Corps Lance Cpl. Cristian Torres VIRIN: 190924-M-HX572-1161Y.JPG Photo Gallery