The U.S. ambassador to the United Nations, Nikki Haley, said President Donald Trump "has not yet made a decision about possible actions in Syria".
Western allies, including the United States, the UK, and France, are thought to be preparing for strikes, but Russian Federation, a Syrian ally, has strongly opposed such action.
"We can not depend on what someone on the other side of the ocean takes into his head in the morning".
"And what's most important is no one contests that the use of chemical weapons can not be tolerated and must be deterred, " he said.
The Russian military on Friday said it had proof that an alleged chemical weapons attack in Syria's Eastern Ghouta was staged on orders from London.
Russia's ambassador to the United Nations, Vassily Nebenzia, told reporters "The situation (in Syria) is very risky".
"The immediate priority is to avert the danger of war", Moscow's United Nations ambassador Vassily Nebenzia said on Thursday. "We hope there will be no point of no return".
Wednesday: Russia's Foreign Minister Sergei Lavrov said Russian military inspectors found no evidence of a chemical attack.
"God forbid anything adventurous will be done in Syria along the lines of the Libyan and Iraqi experience", Lavrov told a news conference, referring to past Western military interventions elsewhere in the region.
Sheikh Naim Qassem, deputy leader of Hezbollah, told Lebanese daily Al-Joumhouria: "The conditions do not point to a total war happening. unless Trump and (Israeli leader Benjamin) Netanyahu completely lose their minds".
United States allies have offered strong words of support for Washington, but no clear military plans have yet emerged. Nikki Haley, the USA ambassador to the United Nations, said Sunday that a new round of sanctions will target Russian companies that aid Syria's chemical weapons capabilities.
Some national leaders appeared anxious to avert a showdown between the USA and Russian Federation.
"Russia in the most serious way condemns the attack on Syria where Russian military servicemen help the legitimate government to fight terrorism", Putin said.
But he appeared conciliatory yesterday.
As fears of a Russia-West military confrontation mounted, French President Emmanuel Macron expressed his "deep concerns" over the situation in Syria in a phone call with Russian President Vladimir Putin. The Kremlin readout said that Putin warned against rushing to blame the Syrian government before conducting a "thorough and objective probe". The Russian leader warned against "ill-considered and risky actions. that would have consequences beyond conjecture".
German Chancellor Angela Merkel said she supported the military action.
President Donald Trump erupted in anger when he learned the US was expelling 60 Russian diplomats in March, while France and Germany were only expelling four each, the Washington Post reported late Sunday. An attack, the president said "could be very soon or not so soon at all!" The White House said it was continuing to assess intelligence and talk to its allies about how to respond.
On the ground in Syria, rebels in Eastern Ghouta surrendered their heavy weapons and their leader left the enclave, signaling the end of one of the bloodiest assaults of the seven-year war and a major win for the Assad regime.
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