SSgt. Samuel O. Turner, the tail gunner on a Boeing B-52D bomber, downs a trailing MiG- 21 with a blast of .50-caliber machine guns while flying near Hanoi. Six days later, A1C Albert E. Moore, also a B-52 gunner, shoots down a second MiG-21 after a strike on the Thai Nguyen rail yard. These were the only aerial gunner victories of the war.
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.
