We also need to build and support a coalition that can effectively ensure the safety of Syrians at home and ensure neither Assad nor the Islamic State can destabilize the country.
Secretary of State Rex Tillerson spoke with Russian Foreign Minister Sergey Lavrov on Saturday about the situation in Syria, a longtime Russian ally.
Like health care, Trump is learning that foreign policy is complicated and that taking the wrong step can have severe consequences. Graham asked. "We're in the early stages".
United States to launch missile strikes against a Syrian airbase. Spokesman Sean Spicer said the missile attack sent a clear message to Assad, but he avoided explicitly calling for the Syrian to leave office.
Nikki Haley, the USA ambassador to the United Nations, told an emergency Security Council meeting on Friday that the U.S.is "prepared to do more", against the Assad regime "but we hope that will not be necessary", according to Reuters. With this action, President Trump reestablished a red line on the use of chemical weapons.
"My priority is now to continue contact with the USA and others in the run up to the G7 meeting on April 10-11", said Johnson in a statement.
Republican Senator Rand Paul strongly criticized the strikes, saying prior USA interventions in Middle East conflicts "have done nothing to make us safer".
"Developments in Syria have changed the situation fundamentally", Mr Johnson said, adding he would instead focus on building "coordinated global support for a ceasefire on the ground and an intensified political process".
The so-called "deconfliction line" is operated by the USA military's Central Command at the sprawling al-Udeid Air Base in Qatar.
An air strike killed 18 civilians including five children in Syria´s northwestern province of Idlib on Saturday, the Syrian Observatory for Human Rights monitor said.
The decision undercut another campaign promise for Trump: his pledge to try to warm relations with Moscow.
The move was welcomed by the Syrian opposition and its main backers, including Turkey and Saudi Arabia, but harshly condemned by Russian Federation and Iran, who back Assad and said striking his forces would complicate the struggle against extremist groups.
French President François Hollande said on Twitter that the country and its partners are ready to work toward political transition in Syria, according to a translation by Bing.
As the administration and its provisional band of interventionist boosters pointed out Friday morning, the previous night's missile strike was largely symbolic, a limited and proportional affair created to send Assad-and the world-a message. "It is in our vital national security interest to prevent the spread and use of chemical weapons", said Haley.
"Just a one-time deal is not going to be productive", he continued.
Still, Sen. Lindsey Graham, R-S.C., said he believed that Trump didn't need to consult with Congress. "Assad signed the chemical weapons treaty ban".
Speaking two television programs Sunday, Tillerson said that he had not seen any conclusive evidence that Russians were involved in carrying out the chemical weapons attack.
But Sir Michael said the launching of nearly 60 missiles at the regime airbase from which the attack is said to have originated would now make future incidents less likely.
"We do not have any information that suggests that Russian Federation was part of the military attack undertaken using the chemical weapons", Tillerson said. Earlier, U.S. military officials had said they were looking into whether Russian Federation participated, possibly by using a drone to help eliminate evidence afterward.
White House officials caution that Mr Trump is not preparing to plunge the USA deeper into Syria.
But there must now be a long-term solution to the civil war in which Assad must no longer be president, he added.
Several Iraqi Shiite militias, some of them directly supported by Iran, are helping Assad's camp in the Syria conflict by sending fighting units across the border.
"The world is waiting for the Russian government to act responsibly in Syria", Nikki Haley, the USA ambassador to the United Nations, said during an emergency Security Council session.style="text-align: center;"