Defense Secretary Jim Mattis at U.S. Northern Command headquarters in Colorado Springs, Colorado. Credit: DoD
Defense Secretary Jim Mattis announces the 2018 National Defense Strategy. Credit: DoD
U.S. Air Force Gen. Jay Raymond (right), commander of Air Force Space Command, welcomes Deputy Secretary of Defense Patrick Shanahan (left) to Peterson Air Force Base, Colorado, Feb. 5, 2018. Credit: USAF