Col. David Smith, 158th Fighter Wing commander, speaks to Airmen and their families during a family day event celebrating the arrival of the F-35 Lightning II at South Burlington Air National Guard Base, Vt., Oct. 20, 2019. The 158th FW is the first Air National Guard unit to receive the Air Force's most recent fifth-generation aircraft. (U.S. Air National Guard photo by Tech. Sgt. Ryan Campbell)