Digging Foxholes Marines dig defensive fighting positions after participating in an air assault course during Integrated Training Exercise 5-17 at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., July 29, 2017. Marine Corps photo by Cpl. Christopher A. Mendoza SHARE IMAGE: Download Image: Full Size (1.68 MB) Tags: training, MARINE CORPS, MARINES Photo By: Cpl. Christopher Mendoza VIRIN: 170729-M-BZ307-1036A.JPG Photo Gallery