Smoke rises from the site of US-led air strikes in the town of Sinjar, Iraq. Photograph: Ari Jalal/Reuters

Kurdish forces backed by US air strikes have seized the northern Iraqi town of Sinjar from Islamic State (IS), giving the jihadists’ opponents an impo(...)

Talks with 17 nations at the Hotel Imperial on in Vienna, Austria on Friday . Photograph: Joe Klamar/Getty

Russia’s foreign minister Sergei Lavrov said multi-lateral talks on Friday on the Syrian crisis had failed to reach agreement over the fate of preside(...)

Smoke rises after what activists said was shelling by the forces of Syria’s President Bashar al-Assad in Old Aleppo’s Kadi Askar area, Syria, August 1st, 2015. Photograph: Reuters

Islamic State militants battled rival insurgent groups on Wednesday north of the city of Aleppo, where officials say the Syrian army is preparing an o(...)

The scene after Russian air strikes in the town of Darat Izza in Syria. Photograph: Ammar Abdullah/Reuters

The largest al-Qaeda group in Syria, Jabhat al-Nusra, has called for terror attacks in Russia, while also urging strikes on Alawite villages and placi(...)

Chief of Staff Mark Mellett (left) warns over “enemies” of the State gaining advantage. Photograph: Alan Betson

Conor Lally Security and Crime Editor The Defence Forces needed to properly harness the “explosion” of data in modern society or risk making terroris(...)

Uphill battle: the aftermath of air strikes in Kafr Nabel, a town in Idlib province. Photograph: Hadi al-Abdallah via AP

The timeline of Syria’s grinding civil war is dotted with illusory turning points. These were atrocities or grim milestones that the world assumed wou(...)

Russian president Vladimir Putin and French president Francois Hollande at the start of a summit on Ukraine in Paris on Friday. Photograph: Etienne Laurent/Pool.

The Russian defence ministry said on Friday that it had bombed seven targets in Syria in overnight air raids, including a command post and a traini(...)

A man reacts amidst rubble after what activists said was an airstrike by forces loyal to Syria’s president Bashar al-Assad in Aleppo’s rebel-controlled Al-Mashad neighbourhood earlier today. Photograph: Abdalrhman Ismail/Reuters

The Syrian military has recently started using new types of air and ground weapons supplied by Russia, a Syrian military source said on Thursday, unde(...)

 Lebanese Salafist leader Sheikh Ahmad al-Assir: radical cleric tried to flee Beirut in disguise. Photograph: AFP/Getty Images

Gone was the long, scraggly beard of the fugitive sheikh’s heyday, replaced with the bushy moustache, thick glasses and combover of a 70s actor. Ahmad(...)

A Muslim man reads the koran at a mosque during the Islamic month of Ramadan. Photograph: Manan Vatsyayana/AFP/Getty Images

A bomb has exploded inside a mosque where al-Qaeda’s branch in Syria was holding a fast-breaking meal, killing at least 14, activists said. The blast (...)