Marine Monitor Marine Corps Lance Cpl. Jack Griffin participates in an exercise at Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., April 20, 2021. SHARE IMAGE: Download Image: Full Size (1.27 MB) Tags: Marine Corps, exercises Photo By: Marine Corps Lance Cpl. Jacquilyn Davis VIRIN: 210420-M-KV124-1080.JPG Photo Gallery