Staff Sgt. Oscar Chavez, 433rd Civil Engineer Squadron explosive ordnance specialist, talks with Honorary Commander Andrea Knight, Frost Bank assistant vice president, about weapons on display during a tour of the 433rd Mission Support Group at Joint Base San Antonio-Lackland, Texas Sept. 7, 2019. Knight is paired with Col. Wayne M. Williams, 433rd MSG commander. (U.S. Air Force photo by Master Sgt. Kristian Carter)