The Strait of Hormuz now carries a formal price tag. President Trump has warned that every time Iran fires on a ship passing through the waterway, the United States will bomb and destroy a piece of critical Iranian infrastructure.

It is a deliberately mechanical formula: one attack, one target. Whether Tehran treats it as a deterrent or a dare is the question the next several days will answer.

Eleven Nights and Counting

American forces struck Iran for an eleventh consecutive night, keeping up a tempo that has become the defining feature of this phase of the war.

Defense Secretary Pete Hegseth put the running cost of the conflict at $37.5 billion, the most recent official accounting.

That number is now doing double duty. It measures the campaign, and it fuels the domestic argument about whether the campaign has a purpose anyone can articulate.

Tehran’s Counter-Threat: All or Nothing

Iran’s chief negotiator and parliament speaker, Mohammad Bagher Ghalibaf, responded with a framing every bit as absolute as Trump’s.

“In a region where we do not sell oil, no one will sell oil,” he wrote on X. “If our security is not ensured, no infrastructure will be safe, and the security of the strait is in the absence of American forces.”

His position reduces to a simple proposition: either the entire region gets peace, or the entire region gets war. There is no arrangement in which Iran is isolated while its neighbours continue business as usual.

Ghalibaf added that the Strait of Hormuz will not return to pre-war conditions. He has previously described the waterway as Tehran’s single greatest source of leverage in any negotiation with Washington.

That’s not rhetorical. Before the war began on February 28, roughly 20 percent of the world’s oil and liquefied natural gas moved through the strait.

The Blockade, Round Two

Trump reimposed a naval blockade on Iran last week following the collapse of the memorandum of understanding, aiming to force Tehran back to talks on American terms.

US Central Command reported the current tally as of Wednesday:

• Nine commercial vessels redirected
• One vessel disabled

The earlier embargo, running from mid-April to mid-June, was considerably larger in scope. CENTCOM said it redirected more than 140 vessels and disabled nine during that period.

It also worked, at least by one measure. Ghalibaf acknowledged in a late-June interview that Iran had not managed to export a single barrel of oil while the previous blockade was in effect. Estimates put the cost to Tehran in the billions.

That admission explains a great deal about Iran’s current strategy. If it cannot ship oil, denying that ability to everyone else becomes the only remaining leverage.

The Gulf States Weigh In

Jasem Mohamed Albudaiwi, secretary-general of the Gulf Cooperation Council, issued a statement following the latest wave of Iranian strikes across the region.

The GCC position covered several points:

• Attacks on maritime passages carry consequences for global energy security
• Iran is continuing to strike GCC countries and other states in violation of international law
• The Security Council and the international community should act to halt Iranian attacks
• Targeting shipping and blocking vessel passage threatens freedom of navigation and civilian protection
• The bloc condemns Houthi statements against Saudi Arabia and threats to close the Bab al-Mandeb Strait

That final item is the one to watch. Hormuz is the primary chokepoint, but Bab al-Mandeb is the alternative route. Threatening both closes the loop.

Reading the Escalation Logic

Both sides have now adopted positions that are difficult to climb down from without appearing to concede.

Trump has committed publicly to an automatic response. Announcing a fixed rule means that failing to follow it becomes a visible retreat, and following it guarantees continued destruction of Iranian infrastructure regardless of any diplomatic developments.

Ghalibaf has committed to a regional all-or-nothing framing. That leaves Iran little room to accept a partial arrangement without contradicting its own stated terms.

Meanwhile the blockade is squeezing Iranian revenue hard enough that Tehran has publicly acknowledged the damage, which increases rather than decreases the incentive to disrupt the strait.

What Actually Hangs on This

The practical stakes extend well beyond either capital.

Energy markets are already reacting to threats rather than events, which means prices reflect anticipated disruption on top of actual disruption. Gulf states hosting American forces are absorbing strikes they did not invite. And the two chokepoints that carry a substantial share of global energy trade are simultaneously under threat.

Ghalibaf’s line about the strait never returning to pre-war conditions may be the most consequential statement of the day. It suggests Tehran views the disruption not as a temporary tactic but as a permanent change to the regional order.

If that holds, then even an eventual ceasefire leaves the world’s most important shipping lane operating under different assumptions than it did in February.