The Honorable Julian Castro, mayor of San Antonio, center, observes as Airmen 1st Class Kara Butler, left, and Stephanie Rymers, right, both of the 433rd Maintenance Squadron Corrosion Shop, prepare the window-reveal mold machine. It manufactures components for the C-5A Galaxy. The mayor visited the wing on Feb. 12, 2013 to learn more about the "Alamo Wing's" missions and its role within the Air Force Reserve. (U.S. Air Force photo by Elsa Martinez)