Turkish forces returned fire on Islamic State militants in Syria with tank shells on Thursday after a Turkish soldier was killed and two others were wounded in a cross-border firefight, the military said. The fighting comes days after a suspected suicide bombing by the Islamist...

The United States said on Tuesday it was very disturbed by anti-U.S. hostility voiced by Iran's top leader after a nuclear deal, as both countries' top diplomats sought to calm opposition to the accord from political hardliners at home. U.S. Secretary of State John Kerry said a...

 One senior Tunisian Islamic State leader alongside five other foreign jihadists were killed in an air strike near the northeastern city of Hasaka, the Syrian Observatory for Human Rights reported on Monday. The Observatory, which gathers its information from an activist network on the...

The United States said on Tuesday it was falling far behind plans to build a Syrian opposition force to battle Islamic State, disclosing that just 60 fighters were in training after U.S. vetting thinned the number of recruits. The U.S. military launched its program in May to...