The defense ministers of France and the United States agreed on "concrete steps" to intensify cooperation against the Islamic State group, the Pentagon said.
German President Joachim Gauck said the world is confronted with a "new type of war" perpetrated by terrorists bent on killing those who refuse to follow their "barbaric ideology".
Russian President Vladimir Putin and US President Barack Obama shook hands and chatted in a six-second encounter at a summit in Turkey, breaking the ice for the first time since Moscow launched its air campaign in Syria.
Multiple "terror" attacks in Paris increased the pressure on some 20 countries and organisations meeting in Vienna on Saturday to overcome deep divisions and help end Syria's horrific civil war.
Moscow called on Saturday for the international community to unite in its fight against terrorism after a string of attacks in Paris left more than 128 people dead on Friday.
The Paris attacks show it is more vital than ever to coordinate global efforts to fight terrorism, France's foreign minister said, vowing that French "international action" will not stop.
British Prime Minister David Cameron said he was "shocked" after at least 18 people were reported killed in multiple attacks in Paris, including one near the Stade de France sports stadium.
Sirens blaring, blood on the roads, weeping relatives: nightmare scenes played out on the streets of Paris on Friday night as at least 120 people were killed in simultaneous attacks.
The Russian plane crash in Egypt has forced Sharm el-Sheikh hotels to send dozens of staff on "unpaid leave" as tourist numbers dwindle, with tens of thousands of jobs at risk within months.
Indian Prime Minister Narendra Modi is set to address a huge rally at London'sWembley Stadium and have lunch with Queen Elizabeth II on Friday, the second day of his visit to Britain.
From a quiet, football loving child to an Islamic State executioner, the man who became one of the most haunting figures of the jihadist movement remains a mystery even after being the high-profile target of a US air strike.
According to German Deutsche Welle, sharp tenge depreciation caused some foreign workers, who came to Kazakhstan for better prospects, to consider going back home.
Aung San Suu Kyi's party secured a landslide election victory in Myanmar, propelling the pro-democracy movement to power after a 25-year struggle against authoritarian rule.