Steven Sotloff

Syria: As Islamic State gains hold, US-trained rebels call for more training

The U.S. military says an opposition force of 12,000 to 15,000 is needed to retake the east from Islamic State.

For some young British Muslims, aid work not jihad pulls them to Syria

For authorities struggling to prevent young Muslims from joining the wars in Syria and Iraq, understanding what drives these men is key.

US, Turkey out of sync on Syria but will Biden's visit change that?

Still, the US and Turkey are not in sync about Syria, and Biden's visit follows weeks of misunderstandings and harsh rhetoric emanating from both capitals.

Top US envoy says Islamic State 'impaled' itself by gathering in Kobane

Islamic State had sought to make a symbol out of Kobane by defeating the Kurdish forces seeking to retain control of the town.

Another French militant seen in Islamic State beheading video

European jihadis have taken an increasingly visible role in propaganda by the Islamic State group, as the militants try to demonstrate a global profile.

Families shocked to see sons descend into 'barbaric madness' for Islamic State

Hundreds of young men from Western nations have travelled to Syria and Iraq to join Islamic State fighters who have seized swathes of those two countries.

Syrian military airstrike kills at least 13 including children

The Syrian military widely uses so-called "barrel bombs" to strike at rebel-held areas.

Turkey says it fears influx of another 2-3 mn Syrian refugees

Islamic State also holds large sections of territory elsewhere in the wider Aleppo province.

Undoing of Islamic State: What the horrifying video of Kassig's beheading tells us

The video marked a new high in staged brutality by what is considered the most violent group in modern jihad, but some analysts see it as Islamic State's nervousness.

Foley to Kassig: Tracking Westerners brutally beheaded by Islamic State

Below is a list of executions of Westerners this year by militants or movements linked to the jihadist Islamic State group: