Top US and Iranian officials are due to fly to Switzerland this week and sign a framework authorizing "the immediate and permanent termination of military operations on all fronts," according to Pakistani Prime Minister Shehbaz Sharif.

The official ceremony is scheduled for Friday.

US President Donald Trump echoed Sharif's announcement this weekend, saying a deal to end the war had been reached. Iranian officials signaled cautious support but stopped short of fully embracing all reported details.

It's worth noting that Trump's previous outpourings of...