Air Force Gen. Joseph Lengyel, chief of the National Guard Bureau, speaks about the process that led to the 158th Fighter Wing being assigned the F-35 Lightning II during a welcome ceremony to celebrate the arrival of the aircraft to the wing, Vermont Air National Guard Base, South Burlington, Vt., Oct. 19, 2019. The 158th FW is the first Air National Guard unit to receive the Air Force's most recent fifth generation aircraft, having received two in September out of a total of 20 that will arrive over the following several months. (U.S. Air National Guard photo by Tech. Sgt. Ryan Campbell)