The first Sierra Research-de Havilland Canada E-9A airborne telemetry data relay aircraft is delivered to the Air Force’s 475th Weapons Evaluation Group at Tyndall AFB, Fla.
The U.S. began extensive air and artillery strikes against Islamic State group targets in Syria on Dec. 19 in retaliation for the killing of three Americans on Dec. 13 by a gunman affiliated with ISIS, U.S. officials said.
