The chairman of the worldwide affairs committee of Russia's upper house of parliament, Konstantin Kosachev, said the strikes were a violation of worldwide law and probably created to prevent investigators from the global chemical weapons watchdog from doing their work.
Whether or not Mr Assad is deterred by the latest strike-and warnings of more to come if he continues gassing his people-it will do little to alter the the course of Syria's civil war.
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.
In the Security Council meeting, Syria's envoy to the UN Bashar Jaafari condemned the strikes on Syria as a "flagrant violation of the UN Charter" and described the United States and its allies as "liars and hypocrites" who are "supporting terrorists in Syria".
The Security Council rejected the resolution.
Stoltenberg said after a debriefing of ambassadors by the three allies Saturday that "before the attack took place last night, North Atlantic Treaty Organisation allies exhausted all other possible ways to address this issue to the UNSC by diplomatic and political means".
"But our efforts have been repeatedly thwarted" by Syria and Russian Federation, she said.
Britain launched cruise missiles as part of the co-ordinated military operation with the United States and France in response to the chemical weapons attack in Douma one week ago. It said the government evaluated publicly available information from nongovernmental organisations and other sources as well as unspecified French intelligence.
Syrian air defenses responded firmly to the Western powers' attacks, shooting down most of the missiles fired at the country.
Pence abruptly left the summit's opening ceremonies and returned to his hotel in time to make secure phone calls to congressional leaders to tell them about the strikes.
France is urging Russian Federation to join a push for a political solution in Syria after joint U.S., French and British attacks on Syrian chemical weapons sites.
The vote reflected the deep divisions in the UN's most powerful body, which has been paralysed in dealing with the seven-year Syrian conflict and chemical weapons use in the country. We hit the sites, the heart of the chemical weapons program.
President Donald Trump on Saturday praised the pre-dawn strikes against Syria's regime carried out jointly by the US, Britain and France, saying they "could not have had a better result". He described the difference between the 2017 strikes on Syria verses Friday night's joint operation.
The counter-missiles then burst into the air.