Air Force Lt. Col. Louis Guillermo, 673d Medical Group ear, nose and throat surgeon, rides his bicycle during the Eco Challenge event on Joint Base Elmendorf-Richardson July 19. Guillermo won first place two hours after starting the Eco Challenge. The event gave military members and retirees an opportunity to get active. (U.S. Air Force photo/Airman 1st Class Tammie Ramsouer)
Airman 1st Class Tammie Ramsouer
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