Tech. Sgt. Robert Hemingway, a 433rd Training Squadron military training instructor, yells out commands to Junior ROTC students from John Jay High School May 12, 2016 at Joint Base San Antonio-Lackland, Texas. The students toured the survival, engine, and structural engineering shops at the 433rd Airlift Wing and also saw a Military Working Dog demonstration at the 341st Training Squadron. (U.S. Air Force photo by Benjamin Faske) (released)