A ceremony at Aeronautical Systems Center, Wright-Patterson AFB, Ohio, takes note of the airworthiness certification FAA has awarded to the RQ-4 Global Hawk Block 10 unmanned aerial vehicle. It is the first UAV to receive approval to fly within the entire US national airspace.
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.
