Syrian activists said more than 40 people were killed but Syria and Russian Federation deny the attack and Russian Federation even accused Britain of staging the attack. The US said the overnight missile attacks have crippled Bashar al-Assad's chemical weaponry.
Vice President Mike Pence also said Trump carried out the strikes armed with USA intelligence that at "a minimum it was the chemical weapon of chlorine", noting investigators still might prove sarin was used.
"A significant body of information including intelligence indicates the Syrian regime is responsible for this latest attack and we know that the Syrian regime has a track record of using chemical weapons against its own people", said Karen Pierce, UK Ambassador to UN.
She said: "We can not stand by and let Russian Federation trash every global norm and allow use of chemical weapons to go unanswered".
Mr Johnson said action had to be taken against Syria for the Douma attack during an appearance on The Andrew Marr Show on Sunday.
Russia's Nebenzia called it "a very sad day for the world, for the United Nations, for its Charter which was blatantly, blatantly violated, and for the Security Council which has shirked its responsibilities".
Nikki Haley, the U.S. ambassador to the United Nations, said troops would not be removed until ISIS was defeated, chemical weapons no longer threatened USA interests and it could ensure the monitoring of Iranian activity. Syria has always denied any chemical use and accused rebels of fabricating the attack.
The U.S., United Kingdom and France said they launched airstrikes against Syrian chemical sites after obtaining evidence that a chemical weapon was used by President Bashar Assad's government.
Appearing on Fox News Sunday, U.S. Ambassador to the United Nations Nikki Haley said in a military context the president's declaration of "mission accomplished" refers only to the "task now in front of you" and the United States will continue to monitor Assad's use of chemical weapons and are prepared to respond with further action in the form of additional military action.
She added: "When our president draws a red line, our president enforces the red line".
He accused the United States, France and Britain of "demonstrating a blatant disregard for worldwide law".
"I suspect, however, they'll think long and hard about it", he said.
Mr Sablin also said Mr Assad accepted an invitation to visit the Siberian region of Khanty-Mansi in Russian Federation.
Mr Assad told a group of Russian politicians that Western missile strikes on his country were an act of aggression, according to Russian news agencies.
In a news conference that took place on Saturday morning Pentagon Chief officials said they can't speculate on what will happen next.
The move signaled the West's resolve to return to diplomacy after a one-night military operation that hit sites Western officials said were linked to Syria's chemical weapons programme. She says the USA was confident that they had "significantly degraded his ability to use chemical weapons ever again". I support President Trump's limited action to target chemical weapons facilities and hold this brutal regime accountable.