Luke Days 2011
The U.S. Air Force Thunderbirds soar across the skies March 20 during the Luke Days 2011 Open House. As the Air Force's official air demonstration team, the Thunderbirds were designated the 3600th Air Demonstration Unit at Luke Air Force Base May 25, 1953. (U.S. Air Force photo/Senior Airman Darlene Seltmann)