Col. Ernest Vasquez, 433rd Medical Group commander, passes the 433rd Aerospace Medicine Squadron guidon to the new squadron commander, Col. Paul B. Deschner, during a change of command ceremony at Joint Base San Antonio-Lackland, Texas, Aug. 6, 2017. Col. Deschner replaces Col. Julianne Flynn (right), who departs the 433rd AMDS to take a position with an active duty Air Force in Virginia. (U.S. Air Force photo/Tech. Sgt. Carlos J. Treviño)