Vladimir Putin thinks Russian air strikes in Syria have helped turn the war's tide but the pace of the Syrian army's advance has frustrated him, some sources say. If Aleppo falls, he could get the military and symbolic prize he has been craving.

• February 5, 2016

Russia has serious grounds to suspect Turkey of preparing for a military incursion in Syria, where Russian jets are bombing rebel and jihadi fighters, Defence Ministry spokesman Igor Konashenkov said on Thursday.

• February 4, 2016

Saudi Arabia said on Thursday it was ready to participate in any ground operations in Syria if the U.S.-led alliance decides to start such operations, an adviser to the Saudi defence minister said.

• February 4, 2016

A United Nations envoy halted his attempts to launch Syrian peace talks on Wednesday after the army, backed by Russian air strikes, made a major advance against rebel forces north of Aleppo, choking opposition supply lines from Turkey to the city.

• February 3, 2016

The risk of open war between Russia and Ukraine is greater than it was a year ago and Russian President Vladimir Putin has begun an "information war" against Germany, Ukrainian President Petro Poroshenko told the German newspaper Bild.

• February 3, 2016

The United Nations announced on Monday peace talks for Syria had begun and called on world powers to push for a ceasefire, even as government forces, backed by Russian air strikes, launched their biggest offensive near Aleppo in a year.

• February 1, 2016

The United Nations said on Monday the Syrian government has approved "in principle" a U.N. request for an aid delivery to the besieged Syrian towns of Madaya, al-Foua and Kefraya.

• February 1, 2016

Turkey warned of consequences on Saturday after saying a Russian SU-34 jet had violated its airspace despite warnings, once more stoking tensions between two countries involved in Syria's war, but Russia denied that there had been any incursion.

• January 30, 2016