US Air Force (USAF) AIRMAN First Class (A1C) Timothay Robblee, from the 460th Air Base Wing (ABW), Buckley Air Force Base (AFB), Colorado (CO), has no problem getting over "The Dirty Name" at the obstacle course on Vandenberg Air Force Base (AFB), California (CA). Guardian Challenge, the world's premier space and missile competition, is a four-day event hosted annually at Vandenberg AFB