Earlier on Saturday, the U.S., in cooperation with Britain and France, attacked Syrian military facilities reportedly related to Syria's chemical weapons capabilities.
He added that it was necessary to wait for the findings of an investigation into the alleged chemical attack before taking any steps.
Johnson also insisted that the action would not "turn the tide" of the conflict and was not about regime change.
"There is no proposal on the table for further attacks because so far, thank heavens, the Assad regime has not been so foolish as to launch another chemical weapons attack", he told BBC1's Andrew Marr Show. A United States spokeswoman said Friday the allies had "proof".
Nikki Hayley, the United States envoy to the UN, told the Security Council its forces were ready, "locked and loaded", to mount further strikes if there were signs Mr Assad was again planning to use chemical weapons.
Meanwhile Labour leader Jeremy Corbyn has said Parliament should have been given a vote ahead of the strikes.
"We don't want to see our country just spending all this money on the military while we're getting cutbacks in healthcare, education and housing", said Sale.
Russian Federation also decried the US -led operation as a failure, saying the majority of the rockets fired at Syria were intercepted by the Syrian government's air defense systems.
Miami Heat try to slow hot Philadelphia 76ers in Game 2
Embiid cleared concussion protocol on Sunday, Brown said, though the team does not have a specific date for return. When Embiid does return, it is expected that he will wear a protective mask after doing so during shootarounds.
"Algeria can only regret the strikes", Ouyahia told reporters.
Mr Corbyn warned of an escalation in a "proxy war" between the USA and Russian Federation.
Russian Federation also decried the USA -led operation as a failure, saying the majority of the rockets fired at Syria were intercepted by the Syrian government's air defense systems. But late Saturday, senior administration officials called the evidence "incontrovertible".
The Pentagon has said the strikes on Saturday successfully hit the three chemical weapons facilities which were targeted.
"Yesterday we saw American aggression".
Mr Assad said that he believed that the airstrikes would unify the country, according to Dmitry Sablin who was one of his visitors.
In a news conference that took place on Saturday morning Pentagon Chief officials said they can't speculate on what will happen next.
By contrast, eight countries voted against the Russian draft - the USA, U.K., France, Netherlands, Sweden, Kuwait, Poland and Ivory Coast. And it would establish a new body to determine responsibility for chemical attacks, call for a cease-fire in Syria, unimpeded access for all humanitarian aid, and an urgent resumption of negotiations on a political settlement. Moscow condemned the Western states for refusing to wait for OPCW's findings before attacking.