The Cessna XT-37 Tweet trainer prototype is flown for the first time at Wichita, Kan. The T-37 will fly for more than 40 years as the Air Force’s primary trainer. (The Air Force and Navy selected a new joint primary trainer, the Raytheon T-6A Texan II, with deliveries beginning in 1999.)
The U.S. sent Air Force F-16s over central Syria in a show of force following the Dec. 13 killing of two U.S. Army Soldiers and one American civilian interpreter by a gunman linked to the Islamic State group.

