U.S.-allied Kurds in Syria say 12 killed in strikes as Turkey responds to attack on state-run defense firm CBS NewsTurkey strikes Kurdish militant targets in Syria and Iraq for a second day The Associated PressTurkey strikes Iraq, Syria after attack on defence company near Ankara Al Jazeera EnglishWhat We Know About the Militant Attack in Turkey The New York TimesTerrorist Attack Hits Major Defense Facility in Turkey The Wall Street Journal