Syrian TV showed government supporters chanting slogans and waving flags in the Damascus suburb of Douma, which was the epicenter of an alleged government chemical weapons attack which reportedly killed dozens of civilians this past week.
The senior administration official said, "What you've seen tonight is not the end of the U.S. response".
On Monday, Russia warned that any military intervention from the USA against Russian allies in Syria would result in the "most serious consequences" and called news of last weekend's chemical attacks "fabricated". Tehran also slammed the US's decision of launching air strikes in Syria.
In a televised address from the White House, Trump said he had ordered US armed forces to launch "precision strikes" associated with Assad's chemical weapons capabilities.
"We successfully hit every target", she said.
The Russian leader noted that the U.S., just like a year ago, when it attacked Shayrat Airbase, used a staged chemical attack against civilians as a pretext.More news: Senate Holds Confirmation Hearing For Mike Pompeo To Be Secretary Of State
Dunford said that manned USA aircraft were used in the military operation and that the strike was planned to minimize the risk of casualties among Russia's military forces in Syria.
- The first was at a scientific research centre in greater Damascus involved in the development and production of chemical weapons, the second at a chemical weapons storage facility near Homs, and the third at a chemical equipment storage facility and important command post.
France said on Saturday it would not hesitate to strike Syrian government targets again if the chemical red line was crossed, but that no new strikes were planned at this stage, adding that it would renew a push for peace through dialogue with Russian Federation.
But Trump says America does not seek "an indefinite presence" in Syria and will look to pull out its troops once the Islamic State is totally defeated.More news: Gmail is testing sending confidential emails that automatically expire
Pentagon officials said the attacks targeted the heart of Assad's programs to develop and produce chemical weapons.
Trump is also putting pressure on Russian Federation and Iran to remove their support for Syria as he asked, "what kind of a nation wants to be associated with the mass murder of innocent men and women and children?"
"Mission accomplished" is the same phrase former President George W. Bush infamously used in 2003, after the USA -led invasion of Iraq.
He criticized Russia's support of the Syrian regime saying "Russia must decide if it will continue down this dark path".
The U.S., the United Kingdom, and France carried out joint strikes on Syrian targets on Saturday.
Trump also called out Russia's promise in 2013 that they would guarantee the elimination of Syria's chemical weapons.More news: Kentucky teachers claim victory as budget vetoes rejected