30th OG ready to win Guardian Challenge
VANDENBERG AIR FORCE BASE, Calif. -- 1st Lt. Brian Shimek and 2nd Lt. Sarah Goyen, instructors in the 2nd Range Operations Squadron here, work on instrumentation issue during a simulated launch March 10. Lieutenants Shimek and Goyen are part of the 30th Operations Group Guardian Challenge team. The team will compete in Guardian Challenge on March 24-26. (U.S. Air Force photo/Airman 1st Class Christian Thomas)