SENIOR AIRMAN Rene Marvel, USAF, chef, 21st Space Wing, Peterson Air Force Base, Colorado, carefully measures out the soy sauce part of the dish during the Chef Food Preparation event at GUARDIAN CHALLENGE 2001, at Vandenberg Air Force Base, California. GUARDIAN CHALLENGE, the world's premier space and missile competition, is a four-day event hosted annually at Vandenberg AFB, CA "to recognize the best and demonstrate the commands warfighting skills. GUARDIAN CHALLENGE creates competition-tough crews; improves readiness and combat capabilities through preparation, innovation and sharing; enhances esprit de corps and strengthens teamwork across all mission areas in the command."