Under President Erdogan, Turkey has taken a more active role in the Middle East and raised alarms it may no longer be a reliable Western ally.
Gill Rosenberg, a foreigner fighting with Kurdish forces in Syria, was allegedly captured by the Islamic State. Various Kurdish sources report Ms. Rosenberg is safe, but military officials have not provided evidence of life.
Two hundred Free Syrian Army fighters entered the besieged Syrian border town Wednesday. Turkey is also allowing Kurdish peshmerga fighters from Iraq to transit through Turkey to Kobane.
Using John Cantlie, whose friend and colleague James Foley was beheaded by the group two months ago, is one of the Islamic State's lesser crimes. But it's still a crime.
Turkey's prime minister told the BBC that the US-led coalition against Islamic State must broaden its mandate to target the overthrow of Syria's president. The battle for Kobane on the Syria-Turkish border is ongoing.
Dubious matchmakers and criminal gangs are preying on the Syrian women and girls who have sought shelter in Turkey. The sexual exploitation ranges from illicit marriages to prostitution.
The battle for the ethnic-Kurdish city of Kobane on the Turkish-Syria border could see Iraqi Kurds join the fray in greater numbers after Turkey's decision, a reversal of its previous policy.
The battle for Kobane, a Syrian border town, may have tipped in favor of Kurdish militia seeking to fend off militants from the self-styled Islamic State. US-led airstrikes have played a role.
A look at what victory or defeat would mean for the self-styled Islamic State – and for US objectives in its expanding war in Syria and Iraq.
Turkey says it's unrealistic for it to launch unilateral ground attacks against IS. The US, which is leading an air campaign in Syria, is trying to check the advance of militants against Kurdish forces.