The Pentagon said America is ready if anyone should retaliate.
Despite the airstrikes, White maintains that the USA has no interest in engaging with the Syrian civil war and that the main objective of US forces in Syria remains to "defeat ISIS". Speaking to reporters after a closed emergency meeting of the UN Security Council, Nebenzia said Russian Federation was very concerned with "the risky escalation" of the situation and "aggressive policies" and preparations that some governments were making - a clear reference to the Trump administration and its allies.
The statement called on the Security Council to shoulder its responsibilities to stop the crimes of the regime and its use of internationally prohibited weapons, and to bring the perpetrators of those crimes to global justice.
She added: "We agreed that is was both right and legal to take military action together with our closest allies".
The Syrian Army said in a statement that about 110 missiles were fired by the United States and its allies on Syrian military sites, damaging the Research Scientific Center in the northeast of Damascus and the military bases in Homs.
Gen. Joseph Dunford, Joint Chief of Staff, said the strikes were carried out on three Syrian chemical weapons infrastructures and the US believed it would send al-Assad a strong message.
The Russian military also said that Syrian air defence systems intercepted 71 out of 103 cruise missiles that were launched. He said the USA knew of no civilians killed by allied missiles.
The assessment notes eight chlorine attacks ahead of the "major attack" on Douma and 44 allegations of chemical weapons use in Syria over the past year. Yet he made no mention of a possible Russian military response.
"One again, just like a year ago when the U.S. attacked Shayrat Airbase in Syria, a staged chemical attack against civilians was used as a pretext, this time in Douma, a Damascus suburb". North Atlantic Treaty Organisation representatives planned a special session to hear from U.S., British and French officials. A top Pentagon official, Lieutenant General Kenneth McKenzie, said the action would set back Syria's chemical weapons program "for years". McKenzie says the missiles were fired after the "last impact" was over. The move was a response to Assad regime's chemical attack against its own people.
"We want to re-establish that global norm that chemical weapons are banned and should not be used", May said.
The minister did not specify what evidence the government has to reach that conclusion, however, saying only that Canada is working with non-government organizations and others to collect evidence of war crimes in Syria.
The French military targeted Syria's main chemicals research centre and two chemical production facilities overnight, officials said, adding that the air strikes were over but the military was ready to act upon request. He criticized the US and its allies for launching the strike without waiting for global inspectors to visit the area. Its foreign ministry said: "The Syrian Arab Republic condemns in the strongest terms the brutal American-British-French aggression against Syria, which constitutes a flagrant violation of worldwide law". Russian Federation has blocked moves for a United Nations investigation into the Douma attack and even made the "grotesque and absurd claim that it was staged by Britain", May said.
German Chancellor Angela Merkel welcomed the move and said the strikes were a "necessary and appropriate military intervention".
French UN Ambassador Francois Delattre said Paris has no doubt that the Syrian government was responsible for the chemical attacks.
According to United States officials, the operation comprised three U.S. destroyers, a French frigate and a USA submarine.