The Space and Missile Systems Center (SMSC) Team (left to right) Julio Rodriguez, Salvador Lopez, Frank Vigil, and Darrel Worthen, from Los Angeles Air Force Base (AFB), California (CA), cross the finish line to complete the obstacle course portion of Guardian Challenge 2004 held at 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