EU foreign policy chief Federica Mogherini will visit the Middle East next week for talks on the peace process.
The European Union firmed up plans to crack down on people smugglers in the Mediterranean as Italy said another 2,000 migrants were rescued at sea.
David Cameron could bring forward a referendum on Britain's EU membership to next year instead of 2017 to cut short an impending battle on two fronts.
Greece will plead for leeway from an unwavering Europe, in a fresh effort to free up cash after months of deadlock in bailout talks.
Italy renewed its appeal to the EU for help in managing a relentless wave of migrant arrivals, after around 40 migrants died when their inflatable boat sank off the coast.
German Chancellor Angela Merkel insisted her country needed to work with American intelligence agencies, in the wake of claims Berlin helped the US spy on EU leaders and companies.
Western powers are getting set to counter an expertly crafted Russian disinformation campaign over Ukraine which has left them wrong-footed too many times for comfort.
Iran can play a major role in persuading Syrian President Bashar al-Assad to cooperate in peace talks, EU foreign affairs chief Federica Mogherini said.
The plight of migrants in the Mediterranean requires a "comprehensive response", NATO'S head Jens Stoltenberg said.
Ukraine will press European leaders for peacekeepers to patrol its war-torn east and will angle for more international financial support at two days of high-level talks starting.
European ministers heaped pressure on Greece to speed up negotiations to unblock critically needed bailout funds and avert a dangerous default.
Britain and France agreed to seek UN approval for an EU military operation against people smugglers, in a bid to curb the soaring number of migrants dying.
EU regulators will announce on Wednesday anti-trust charges against Russia energy giant Gazprom, sources close to the matter told AFP.
The EU unveiled a 10-point action plan Monday to stem the tide of migrants crossing the Mediterranean after the latest disastrous loss of life.
German Chancellor Angela Merkel is "appalled" by the latest migrant shipwreck disaster in the Mediterranean and wants Europe to find "answers".
Italy called for an emergency summit of European Union leaders following the latest migrant boat tragedy in the Mediterranean.
The European Union said Thursday it had filed anti-trust charges against Google to speedily resolve allegations that the tech titan abuses its search engine's market dominance.
The European Parliament urged Turkey to use the centenary of Ottoman-era massacres to "recognise the Armenian genocide".
Turkish President warned Turkey would ignore any decision by the European Parliament qualifying the 1915 killings of Armenians in World War I as genocide.
EU competition regulators are set to announce whether they will file anti-trust charges against Google over its domination of the European search market.
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