The collapse of the United States-Iran ceasefire in less than a month is a stark reminder that peace in West Asia has become a remarkably perishable commodity. The ink on the ceasefire with Iran had scarcely dried before missiles are once again crossing the Gulf as oil tankers flee the Strait of Hormuz. Donald Trump’s triumphalist declaration last month that Iran had accepted an “unconditional surrender” has aged with astonishing speed. The latest cycle of escalation was almo