Northrop Grumman rolls out the Navy’s X-47B-the first aircraft under the former J-UCAS (Joint Unmanned Combat Air System) program that had been a joint Air Force-Navy project until the 2006 Quadrennial Defense Review.
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.

