The Iran war reached merchant crews on Tuesday. Houthi forces fired three ballistic missiles at the Egyptian-owned cargo ship Tihamah in the Bab al-Mandeb strait, then fired again while rescuers worked the burning hull [1]. Yemen's internationally recognised government says at least six people are dead and ten are wounded [1].

Name the dead by what they were. Three Pakistani crew. One Indonesian crew. They died in the first strike [1]. At least two troops died in the second, when a missile hit the rescue [1]. Seven of the ten wounded were crew [1]. None of them were fighting a war.

Yemen's coastguard described a deliberate second blow. "The attack struck the site of the rescue operation and resulted in deaths and injuries among the forces participating in the response operation," it said [1]. A double strike times the second hit for the responders. That is the mechanism that turned four dead into at least six.

Yemen's government put a marker on the day. The attack, it said, marks the first shipping deaths linked to the Iran-aligned Houthis since the United States and Israel launched the war on Iran on February 28 [1]. The war has run on tankers and warships for five months. Tuesday is the day it killed working sailors on a commercial ship.

The target is disputed, and the two accounts do not meet. Yemen's government says the Houthis hit the Tihamah, a commercial vessel [1]. The Houthi-run Saba news agency says the group struck a Saudi ship carrying military equipment in Bab al-Mandeb, and did not name it [1]. One account describes a cargo crew. The other describes a military resupply. The nationalities of the dead are not in dispute in either version: Pakistani and Indonesian civilians.

The other waterway had its own strike the day before. On August 11 a US Navy helicopter fired two Hellfire missiles at the Panama-flagged container ship Vela Nova in the Gulf of Oman, disabling its engine room and steering [2]. CENTCOM said the ship "attempted to transit the Gulf of Oman and violate the U.S. blockade against Iran by sailing toward an Iranian port" and "ignored repeated warnings from American forces" [2]. No casualties were reported [2]. By CENTCOM's own count, the blockade has now disabled 55 commercial vessels [2].

Count it plainly. Two strikes, two waterways, twenty-four hours. A Houthi missile on one side of the Arabian Peninsula, a US Hellfire on the other, both aimed at commercial ships. One killed crew. One disabled a hull. The maritime economy of the whole region is the front now.

The chokepoint between the two waterways is closed, and it stays closed on Iran's terms. Mohsen Rezaei said the Strait of Hormuz "will not be opened until the United States changes its behaviour and accepts Iran's conditions" [2]. The traffic shows what that costs. Ten vessels crossed Hormuz on Monday, the maritime intelligence firm Windward counted, against roughly 130 a day before the war [3]. Brent crude for October delivery sat at $89.53, about 24 percent above where it stood when the war began on February 28 [3].

Monday's ledger on this thread was about who pays for a closed strait: two governments raised their demands over Hormuz and left the barrel of crude to carry the difference. Tuesday's ledger is smaller and heavier, and it is measured in crews. When a blockade and a counter-blockade turn the same shipping lanes into a shooting gallery, the people who pay first are the ones who signed on to move food and containers, not to fight. Three Pakistanis and an Indonesian paid it on the Tihamah.