Vladimir Putin is fully mobilized to tackle what Russia regards as a threat from Turkey following the shooting down of one of its warplanes.
Turkey advised people to postpone non-urgent travel to Russia on Saturday, as the tit-for-tat accusations continue after the downing of a Russian jet.
Col. Jack Jacobs, Medal of Honor Recipient; MSNBC Military Analyst, discusses what Putin is likely to do in light of the downing of a Russian military plane by Turkish forces.
CNBC's Geoff Cutmore reports French President Hollande and Russian President Putin have agreed to work together to battle ISIS. And an update following the downing of a Russian military plane by a Turkish F-16.
France and Russia agreed to exchange intelligence on militant groups in Syria, but tensions between Russia and Turkey showed little sign of easing.
Around 1,000 people attended a national memorial service in the centre of Paris held in tribute to the victims of the terror attacks.
CNBC's Geoff Cutmore reports from Russia about Russian President Vladimir Putin's frustration with western allies caused by the destruction of a Russian military jet.
CNBC's Hadley Gamble reports that Turkey's president, Recep Erdoğan, criticized Russian complaints about the shooting down of a Russian jet as emotional and unfitting.
Alex Krasodomski-Jones, researcher in the centere for the analysis of social media at Demos, explains the methods used by ISIS to evade online surveillance.
CNBC's Geoff Cutmore reports from Russia that President Vladimir Putin does not face the same opposition to military action in Syria as political leaders in other countries, such as in the U.K.
CNBC's Geoff Cutmore reports from Russia about President Vladimir Putin's anger over the shooting down of a Russian jet by Turkey.
CNBC's Julia Chatterley reports from Brussels where Belgian security services are continuing to conduct raids on suspected terrorists in the city.
CNBC's Hadley Gamble reports from Turkey that, despite conciliatory tones from Turkish President Recep Erdoğan, he still has not apologized for shooting down a Russian military jet.
Russia will keep cooperating with the United States and its partners to fight Islamic State in Syria, Russia's Vladimir Putin said.
China will shake up its military by establishing a joint operational command structure and rejig existing military regions as part of overall reforms.
Tom Switzer, U.S. Studies Center research associate at the University of Sydney, says there are serious limits to how much a U.S.-led coalition can bring positive change in Syria.
German police commando units arrested two people in Berlin on Thursday who are suspected of planning an attack, a police spokesman said.
Vadim Nikitin, senior associate at Stroz Friedberg, talks about how Russian president Vladimir Putin is dealing with the situation in Syria and the escalating tensions with Turkey.
Russia’s President Putin is meeting his French opposite number Hollande Thursday evening, as France seems keener to bring Russia in from the cold.
Russia may trade an end of EU sanctions with cooperation on Syria, says Tina Burrett, assistant professor of political science at Sophia University.