UK Foreign Secretary Boris Johnson said that the United States could launch further strikes against Assad regime forces in Syria.
The Foreign Secretary was speaking ahead of G7 international talks scheduled for Monday and aimed at agreeing a common position on the Syrian civil war. 
Issues on the table at the meeting will include the possibility of forcing Russian withdrawal from the conflict. 
That meeting comes ahead of a visit to Russia by US secretary of State Rex Tillerson. Tillerson says he will deliver a "clear and co-ordinated" message to the Kremlin about its role in the civil war. 
US President Donald Trump ordered missile strikes against Syrian government military targets last week in response to the deaths of more than 80 people during an alleged chemical attack in the rebel-held town of Khan Sheikhoun. 
Discussing the round of missile strikes, Johnson told The Sun newspaper: "Crucially - they could do so again". 
"It is time for [Russian president Vladimir] Putin to face the truth about the tyrant he is still propping up," he said. 
The US and UK blame Russia for being complicit in last week's chemical attack and the ongoing brutal conduct of the Syrian government. Defense Secretary Sir Michael Fallon on Sunday claimed that Russia was responsible for "every civilian death" in the Syrian chemical weapons attack, because it was the Syrian government’s "principal backer". 
During talks in Italy, Johnson will say that President Assad has no future in Syria, Russia must stop supporting the regime and a plan to rebuild the country must be drawn up. 
Some 87 people, including children, are believed to have been killed in the suspected sarin nerve agent strike on Khan Sheikhoun. Trump subsequently ordered a strike by 59 cruise missiles on the base in America's first direct attack against the Syrian government. 
The base appears to be at least partly operational despite the strike, however, with reports of warplanes taking off from it in the days following the attack. 

Source: QNA