2nd Lt. Kelly Flinn, the first woman selected for bomber crew training, begins B-52 pilot training with the 11th Bomb Squadron, 2nd Bomb Wing, Barksdale Air Force Base, La.
The U.S. began extensive air and artillery strikes against Islamic State 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.

