The Pentagon said Saturday that the US -led allied missile strikes in Syria successfully hit all three targets and have "significantly crippled" Syrian President Bashar Assad's ability to make more chemical weapons.
Hours later on Twitter, Donald Trump said "mission accomplished" and called the attack a "perfectly executed" strike.
As recently as last week, Trump had been saying that he wanted the U.S.to withdraw its forces from Syria.
- American Forces deployed B-1B Lancer bombers for last night's strike and used double the number of weapons than in a 2017 missile strike responding to the Khan Shaykhun chemical attack.
The United States, Britain and France have argued that military action was necessary after Assad's forces had used toxic gases multiple times in violation of worldwide law. Could not have had a better result.
It comes after Trump addressed the USA while British Prime Minister Theresa May and President Emmanuel Macron both gave speeches justifying the use of force in response to the "evil and despicable" poison gas attack.
"Moreover, the air defenses in Syria destroyed most of the missiles". "We hit the sites, the heart of the chem weapons program".
In a statement Mrs May said that the Syrian regime had demonstrated a "persistent pattern of behaviour" when it came to the use of chemical weapons, that "must be stopped".
For his part, McKenzie said three facilities that "were fundamental components of the regime's chemical weapons warfare infrastructure" had been targeted. He also said 105 missiles were launched by air and sea. Trump also warned Russian Federation and Iran not to stand by their ally in Damascus.
Mr. Trump claimed the USA will have a "sustained" response to curtail Syria.
The strikes were aimed at "chemical weapons infrastructure" in what the USA billed as a warning against Assad employing such weapons in the future - a warning he has been accused of flouting in the past.
Behind closed doors, Trump pushed for a more aggressive response than the one taken previous year, wanting options that would involve attacks on targets in Syria associated with Russian Federation and Iran, officials said.
Asked about the president's tweet on Saturday, Pentagon spokesperson Dana White said that the joint forces had "met our objective".
"Assad's commitment of atrocities using chemical weapons against innocent civilians can not be tolerated by civilized nations".
McKenzie defended the attacks in response to questions about the proof that Assad had used chemical weapons on civilians.
She added that the strikes were not about "regime change".
She stressed: "This is not about intervening in a civil war".
The strikes, led in partnership with Britain and France, hit Syria one week after reports of a horrific chemical attack in the town of Douma that led to the deaths of men, women and children, many of whom are believed to have suffocated.