If Donald Trump stops the fighting in the Middle East it will be "one of the most significant acts of peacemaking" the region has seen in generations, our US correspondent David Blevins says.
Blevins notes that Trump has not achieved a ceasefire in Ukraine or Gaza, so this would be by far his "biggest foreign policy win".
He says while the rest of the world was distracted by that reprisal attack of sorts by Iran over Doha, it seems that Trump was already engaged in "high stakes diplomacy" - persuading Benjamin Netanyahu to sign up to a ceasefire.
And then he asked his friends in Qatar to do the same with Iran and they did.
Blevins says Trump is suggesting fighting in the Middle East could be over in 24 hours.
"If he achieves that it will be remarkable," he says.
"He will have gone from airstrikes on Iran to one of the most significant acts of peacemaking in the Middle East in generations in the space of three days."