Israel’s airstrike on Hezbollah’s leadership in Lebanon has far-reaching implications for Tehran and Washington

When Antony Blinken, the US secretary of state, told reporters in New York on Friday that the coming days will determine the future path of the Middle East, he could not have been more prescient, even if at the time he was hoping that Hezbollah and Israel could be persuaded to step back from the brink.

Now, with the Hezbollah leader Hassan Nasrallah confirmed killed, the region, after 11 months, has finally stepped over the brink and into a place it has truly never been before.