U.S. Air Force Col. Phil Stewart, left, 9th Reconnaissance Wing commander, and Lt. Col. Stephen Rodriguez, 1st Reconnaissance Squadron commander, unveil a commemorative plaque celebrating the 1st Reconnaissance Squadron’s 100 year anniversary on Beale Air Force Base, Calif., March 8, 2013. The 1st RS is the United States military’s oldest flying unit, established March 5, 1913. (U.S. Air Force photo by Airman 1st Class Bobby Cummings/Released)