US Air Force Academy Class of 2015 Graduation Ceremony
The U.S. Air Force Academy’s Class of 2015 tosses their hats in celebration as the Thunderbirds roar over Falcon Stadium in Colorado Springs, Colo., May 28, 2015. Over 800 cadets graduated and became second lieutenants. Secretary of the Air Force Deborah Lee James addressed the graduates during the ceremony. (U.S. Air Force photo/Liz Copan)