Assad denies he has used chemical weapons, and the US has yet to present evidence of what it says led to the allied action: a chlorine gas attack on civilians in Douma on April 7 that killed more than 40 people.
Russian President Vladimir Putin warned Sunday that further Western attacks on Syria would bring chaos to world affairs, as Washington prepared to increase pressure on Russia with new economic sanctions.
"There is every reason to believe that after the United States strikes on Syria, the Americans will be eager to move to a strategic dialogue", Interfax news agency quoted Vladimir Ermakov, head of the foreign ministry's department for non-proliferation and arms control, as saying.
Haley said the joint military strike "put a heavy blow into their chemical weapons program, setting them back years" and reiterated that if Assad uses poison gas again, "the United States is locked and loaded".
But she repeated a comment she made Saturday at an emergency meeting of the U.N. Security Council in NY, saying the U.S.is "locked and loaded" and ready to punish Syria again if it continues using chemical weapons.
A French defense minister seemed to contradict Dunford's assertion early Saturday morning, saying Russian Federation was warned ahead of time, the Associated Press reported.
Following up on President Donald Trump's threat, the USA - along with allies Britain and France - rained cruise missiles at three locations in Syria on Saturday, the biggest strike by the West in the seven years of the war in Syria.
The Sunday Times also said that British spy officials had been preparing for Russia-backed hackers to release embarrassing information on politicians and other high-profile people since the attack on the Skripals.
"In the U.S. administration there are specific people who it is possible to talk with".
Russian Federation and Syria also clashed with the three Western allies over the legality of the airstrikes and responsibility for the Security Council's paralysis.
"Russia vows to shoot down any and all missiles fired at Syria". Moscow has also tempered its tone, saying only that "there will be consequences". What happens next, she said, is up to Assad and his Russian and Iranian allies.
"And what's most important is no one contests that the use of chemical weapons can not be tolerated and must be deterred", he said.
Oil prices fell, however, as geopolitical tensions were somewhat eased by signs that there would be no significant retaliation in response to a US-led air strike on Syria over the weekend. The strikes targeted a research facility near the Syrian capital of Damascus and suspected chemical weapons storage facilities near Homs.