The strikes were seen as a middle ground between a limited and largely symbolic strike - such as last year's the US missile attack - and a large-scale assault that either could destroy Syria's chemical weapons or could weaken Bashar Assad's grip on power.
Trump has warned there would be a "big price to pay", and Washington's United Nations ambassador Nikki Haley made it clear that the failure to secure a Security Council vote would not hold America and its allies back.
"The president's national security team met today".
Mr. Trump told reporters on Monday during a Cabinet meeting that the administration would be making a "major" decision on Syria within the next 24 to 48 hours.
Putin said the U.S. actions in Syria made the humanitarian catastrophe there worse and caused pain for civilians.
Criticism of the allied airstrikes was limited. Russian President Vladimir Putin said the strikes would have "a destructive effect on the entire system of worldwide relations".
But May also said the strikes were not about "regime change". He and Trump spoke repeatedly this week.
Shabaan said the results of the Syrian war have come against the Western approach in terms of the emergence of the Russian, Syrian, and Hezbollah alliance, calling it the "alliance of the future".
That attack involved 59 Tomahawk missiles fired from two US warships in the Mediterranean Sea.
In a series of Twitter broadsides that coincided with Russia-focused segments on his favored channel Fox News, Trump opened the door to military attacks against the Kremlin's Syrian allies and voiced the toughest anti-Russian rhetoric of his presidency.
Moscow and Washington have so far vetoed each other's motions to set up an global investigation into chemical weapons use.
Meanwhile, on Friday Hezbollah leader Hassan Nasrallah said his group, Syria, Iran and Russian Federation are not scared by Trump's threats.
No serious observer thinks Washington or Moscow want to fight each other over Bashar al-Assad's latest alleged use of banned chemical weapons on his country's civil war battlefield.
Russian Foreign Minister Sergei Lavrov said earlier that Moscow was in contact with Washington to discuss an atmosphere he described as alarming.
Dozens of people in Douma died and hundreds were injured in the attack, according to the World Health Organisation (WHO).
Syria and Russian Federation have denied that the attacks happened and said they were staged by the White Helmets so that the Syrian government could be blamed.
"America does not seek an indefinite presence in Syria under no circumstances".
"We are prepared to sustain this response until the Syrian regime stops its use of prohibited chemical agents", he added. The White House said it was continuing to assess intelligence and talk to its allies about how to respond. "Servicemen are in touch with each other, everything that remains, everything that has not been frozen is being used", Lavrov said at a press conference. During her trip, Russian Federation and India came to agreements on joint shipbuilding in India, thus boosting Modi's "Make in India" initiative. "It's alarming but it's not a reason to panic".
Statements from Washington have been militaristic, ministry spokeswoman Maria Zakharova said, and threats by the U.S. and France were a violation of the United Nations charter.
British Prime Minister Theresa May and French President Emmanuel Macron confirmed their countries' involvement in the action with the former saying there was "no practicable alternative to the use of force".
Putin's more restrained statement nonetheless argues that the attacks mark the second time the USA has launched strikes in response to alleged use of chemical weapons by Assad without adequate proof.