Attack for Attack
There is a ceasefire operating in the Gulf that nobody signed. Tehran published the rule, passed it to Washington through channels and both capitals are now observing it.
Thirteen consecutive nights of American bombing ended late on Friday. Saturday passed with no strikes reported anywhere in Iran. So did Sunday. Iran, which had answered each of those nights by firing at the Gulf states that host American bases, has now held its fire for two days.
The rule holding this together was written in Tehran. A senior Iranian official put it in one phrase. The position remains attack for attack, and if the attacks stop, Iran halts its operations. The message had already been passed to Washington before it reached print. Two governments at war are now observing a mechanism that neither of them has signed, named or acknowledged as an agreement.
Read what else Tehran said during those same two days. The foreign ministry stated flatly that there has been no change in the traffic situation in the Strait of Hormuz following the talks with Oman. The deputy speaker of parliament and a senior member of its national security committee both said Iran must keep control of the waterway and cannot allow it to return to pre-war conditions. Days earlier, Iranian officials had let it be known that Tehran would reject any ceasefire proposal that left the strait's status ambiguous.
The quiet covers the shooting. The claim underneath the shooting was restated three times in forty-eight hours by three different men.
American coercion also continued straight through it. On Saturday, US forces boarded a sanctioned tanker in the Arabian Sea to enforce the blockade of Iranian ports, and the vessel resumed course for Oman the following day. That blockade has not paused once.
Washington has offered two explanations for stopping, both over the same weekend, and they do not fit together. The ambassador to the United Nations said the president was giving the talks space and a little bit of room. A defence official described a different conversation, in which advisers told the president they were running out of targets and worried aloud about depleting the arsenal, and in which the chairman of the Joint Chiefs privately cautioned that resuming major combat operations would draw down munitions stocks including the interceptors that defend American bases across the region. Neither account has been withdrawn. Anyone claiming to know which one is operative is guessing.
Meanwhile the coercion in the strait changed instrument. Iranian state media has spent the past week insisting that the alternative corridors, the ones running along the Omani coast outside Iran's own designated route, are mined. Two tankers have been claimed as mine casualties in five days. No party outside Iran has confirmed either one. Confirmation was never the point. A shipmaster deciding tonight's route and an underwriter pricing tomorrow's hull cover both act on the rumour, and the rumour costs Tehran nothing to maintain while its missiles sit still.
A working reciprocity rule is a genuine achievement, and this war has produced none before it. Call it the first hinge of a settlement if you like. The rule still regulates one thing only, which is who shoots and when.
The thing the war is actually about sits exactly where it sat on Friday. Whether Iranian leverage over that waterway is compounding or quietly rotting depends on a figure nobody has published in nineteen days: how many ships actually went through this week.