Colorado Arrival Acting Defense Secretary Patrick M. Shanahan walks with Air Force Gen. John E. Hyten, commander of U.S. Strategic Command, after arriving for the 35th Space Symposium in Colorado Springs, Colo., April 8, 2019. SHARE IMAGE: Download Image: Full Size (0.26 MB) Tags: Shanahan, Space, Strategic Command, Hyten, Acting Defense Secretary Photo By: Lisa Ferdinando, DOD VIRIN: 190408-D-BN624-0052.JPG Photo Gallery