The drumbeat of military action appeared to grow louder, as Russian Federation stonewalled diplomatic efforts at the United Nations and France declared "proof" that Moscow's Syrian ally carried out a deadly chemical weapons attack that killed more than 40 Syrians.
The Foreign Ministry in Damascus denounced President Donald Trump's threat to attack the country as "reckless" and a danger to worldwide peace and security.
"Our teams have been working on this all week and we will need to take decisions in due course, when we judge it most useful and effective", Macron told broadcaster TF1.
A White House statement released later said the United States is continuing to assess intelligence and is engaged in conversations with its partners and allies.
The Kremlin spokesman is warning the US and its allies against any steps that could destabilize the situation in Syria. "Because we haven't laid out any specific actions that we plan to take, I can't tell you exactly what needs we would have to go to Congress with", she said.
The Russian army, in coordination with the Syrian government, is ready to provide safe conditions for chemical experts on the ground, she added.
The U.S., France and Britain have been in extensive consultations about launching a military strike as early as the end of this week, U.S. officials have said.
Trump on Wednesday vowed to thwart Russia's missile defense system in Syria, warning that missiles "will be coming, nice and new and 'smart.'" The President, however, did not refer to the attack's timing. But he tweeted Thursday that it may come "very soon or not so soon at all!"More news: Ekiti Guber Election: Fayemi notifies APC leaders, public on interest to run
US President Donald Trump has threatened to strike Syria in response to an alleged gas attack in the Arab country.
The president made his latest statement in a tweet Thursday morning. For example, he said, "a few years ago, there was a warning about Russian Federation firing missiles from naval assets in the Caspian Sea".
US Defense Secretary Jim Mattis says he believes there was a chemical attack in Syria and that the United States is looking for the evidence.
Iran, which has been operating militarily in Syria and backs Syrian President Bashar Assad, has threatened to respond to an Israeli airstrike on the T-4 airbase in Syria on Monday. A Syrian government air base near Homs, which is said to be home Iranian fighters allied with Assad, was struck by missiles.
Meanwhile, Syrians are bracing for a possible attack in retaliation to the alleged chemical attack on Douma.
At stake in Syria is the potential for confrontation, if not outright conflict, between the USA and Russian Federation, former Cold War foes whose relations have deteriorated in recent years over Moscow's intervention in Ukraine, its interference in the 2016 US presidential election and its support for Syrian President Bashar Assad.
But the pinpoint strike did not deter Assad and U.S. officials, speaking on condition of anonymity, have since investigated as many as 10 suspected chemical attacks.