As Iran expands attacks and keeps talks open, can diplomacy survive a widening US-Iran conflict from Hormuz to the Red Sea and beyond?

Diplomatic approaches tried so far have been found wanting, and a new way forward is needed

Over the past week, the conflict between the United States and Iran has gone from a simmering tit-for-tat to something that much more resembles all-out war.

Diplomats on Tuesday sought to salvage the collapsed interim deal between Iran and the US