But as lawmakers called on Trump to consult with Congress on any future military strikes and a longer-term strategy on Syria, Trump administration officials sent mixed signals on the scope of USA involvement.
Top aides to President Donald Trump demurred on Sunday over where U.S. policy on Syria was headed after last week's retaliatory missile strike, leaving open questions about whether removing Syrian leader Bashar al-Assad from power was now one of Trump's goals.
Also on April 10, Russia's Foreign Ministry said the Russian and Iranian foreign ministers condemned "aggressive" us actions against Syria in a phone call. Treasury Secretary Steven Mnuchin says additional economic sanctions against Syria are being prepared.
Following the chemical weapons attack, Tillerson also signaled a change in the administration's view of the Syrian president, saying he does not see a role for Assad governing the country.
"It is through that political process that we believe the Syrian people will.be able to decide the fate of Bashar al-Assad", Tillerson said.
A joint command center made up of the forces of Russian, Iran and allied militia alliance supporting al-Assad said the USA strike on a Syrian air base crossed "red lines" and it would now respond to any new aggression and increase their level of support to their ally.
Britain to demand "very punitive sanctions" on Russian Federation at a G7 foreign ministers meeting.
In Tehran, Iran's supreme leader Ayatollah Ali Khamenei said the United States had made a "strategic mistake", and vowed that Iran "will not leave the field.in the face of threats". "The political solution has to come together for the good of the people of Syria", she said. Russian President Vladimir Putin said United States strike was an "act of aggression".
USA secretary of state Rex Tillerson will go ahead with his visit this week to deliver a "clear and co-ordinated" message to the Kremlin. And Haley, too, said Washington's priority was "no longer to sit and focus on getting Assad out".
Speaking ahead of the two-day gathering in the Italian city of Lucca, Tuscany, British Foreign Secretary Boris Johnson said on April 10 that possible sanctions against Syrian and Russian military officials would be discussed.
Sergei Lavrov and Mohammad Javad Zarif said such actions against a sovereign, independent country are "a flagrant violation of global law, above all, the UN Charter, create threats for regional security, and impair the fight against worldwide terrorism", the ministry said in a statement.
Blitzer mentioned that the U.S. military also shared an image of a radar track of a Syrian airplane from the Shayrat airfield flying to the purported chemical strike area Tuesday. They're saying by covering for Assad that they knew that it was there, or they were incompetent by having chemical weapons there in the first place.
Donald Trump's Ambassador to the United Nations, Nikki Haley, said at the weekend that the President's priority was regime change in Syria, but Mr Tillerson said on Saturday the first priority was the defeat of Islamic State.
On Saturday British Foreign Secretary Boris Johnson announced he had canceled a planned trip to Russian Federation because of fast-changing developments in Syria.