Col. Phil Stewart (lower middle), 9th Reconnaissance Wing commander, and 1st Reconnaissance Squadron past and present commanders pose for a photo during the 1st RS Centennial Celebration at the Sheraton Grand Hotel in Sacramento, Calif., March 9, 2013. Photos were on display showing the evolution of the squadron throughout the last 100 years. (U.S. Air Force photo by Senior Airman Allen Pollard/Released)