Moscow responded angrily to Washington warnings about attacks against Russia.
The Russian leader announced he will return to four-way talks.
Two powers were close to a deal but ceasefire terms are still to be worked out.
The Kremlin has said Moscow is "ready" for meeting in China.
Germany, France and Italy are set to discuss strategy for U.K.'s EU exit talks.
The Israeli PM told Putin the issue was a "red line" for his country.
"Europe may not be able to cope with another frozen conflict," the ex-president said.
The neighboring countries have agreed to talk at government level for the first time since August
Anheuser-Busch InBev and SABMiller control 30 percent of the global market share and 70 percent in the U.S.
Ayatollah Ali Khamenei has responded to overtures from U.S. President Barack Obama amid nuclear talks with a secret dispatch, The Wall Street Journal reported Friday.
Fox executives confirm they've been in talks with series creator Chris Carter.
Meetings in Canada and at the Vatican facilitated talks which led to a thaw in U.S.-Cuba relations, according to multiple reports.
The U.S. and other world powers are all but certain to need an extension in negotiations to resolve a 12-year stand-off over Iran's atomic ambitions.
It's unlikely a final deal will be reached before the Monday deadline.
The powers negotiating with Iran face a delicate balancing act as they try to bring a 12-year nuclear dispute to an end.
"Out of this conference must come not just money but a renewed commitment from everybody to work for peace."
Fighting continues in eastern Ukraine as a cease-fire deal is reached
EU leaders threatened fresh sanctions against Russia in response to ongoing aggressive military action in eastern Ukraine
Putin and Poroshenko meet as Russian troops are taken prisoner on Ukraine soil
Kiev has released a video of captured Russian soldiers it says were on a "special mission" inside Ukrainian territory
China and the U.S. are holding talks expected to focus on cyber-security, maritime disputes, the Chinese currency and an investment treaty