Dominance Experiment Representatives from all 11 U.S. combatant commands participate in the third series of Global Information Dominance Experiments at North American Aerospace Defense Command and U.S. Northern Command Headquarters at Peterson Air Force Base, Colo., July 13, 2021. SHARE IMAGE: Download Image: Full Size (0.44 MB) Photo By: Air Force Tech. Sgt. Tommy Grimes VIRIN: 210713-F-ZD999-001C.JPG Photo Gallery