US Air Force (USAF) Guardian Challenge team personnel and mascot from the 90th Space Wing (SW) at F.E. Warren Air Force Base (AFB), Wyoming (WY), land in a USAF C-141B cargo aircraft at Vandenberg Air Force Base (AFB), California (CA) and are greeted by the Space Command (AFSPC) Commander General (GEN) Lance Lord (second from right). Guardian Challenge is the world's premier space and missile competition, a four-day event hosted annually at Vandenberg AFB, CA