"The risk posed by armed non-state groups exploiting the current instability in Iran is significant," one analyst told Newsweek.

Why would the U.S. pursue an alliance to defeat ISIS with a military that is itself composed of former ISIS and al Qaeda members?

The strikes were part of Operation Hawkeye Strike, which was launched in retaliation for an ISIS ambush that killed two ...

A “mass escape” took place last month from Syria’s al-Hol camp that holds tens of thousands of ISIS-linked families, following the withdrawal of Kurdish forces, Syrian TV reported, amid reports ...

U.S. officials prevented catastrophic ISIS prison break in Syria by secretly moving nearly 6,000 "worst of the worst" ...

When The Wall Street Journal reported Friday that up to 20,000 ISIS-affiliated detainees had disappeared from Syria's al-Hol camp, it wasn't describing a routine breach. It was describing the possible ...

Nearly 6,000 ISIS detainees, described by a senior U.S. intelligence official as "the worst of the worst," were being held in northern Syria as clashes and instability threatened the Kurdish-led ...

Syrian officials announced that there was a "mass escape" last month from the Kurdish-controlled al-Hol camp, which held ISIS ...

U.S. and partner forces killed or captured nearly 25 Islamic State operatives in Syria in the days following a large-scale U.S.-led strike on Dec. 19, according to a new statement from U.S. Central ...

Friday is the day for public beheadings. — -- In ISIS controlled territory, Friday is the day for public beheadings and amputations for people who violate its strict Islamic rule, and whippings ...