Pakistan's 20 Ships Aren't a Crack in the Sanctions Wall — They're a Window Into Something Much Worse

Let me start with what everyone is focused on, and then explain why they're looking at the wrong thing.

On Saturday, Pakistan's Foreign Minister Ishaq Dar announced on X¹ that Iran had agreed to let 20 Pakistani-flagged vessels transit the Strait of Hormuz, two per day. The immediate reaction in a lot of policy circles has been to treat this as a dangerous precedent — the first crack in the sanctions architecture, proof that states with leverage can buy carve-outs and that Iran can simply wait while the coalition fractures. I think that framing is wrong. Not because the concern is illegitimate, but because it dramatically understates what has actually happened over the past month. Pakistan's 20 ships are not the crack. They're a hairline fracture next to a building that's already on fire.

Here's what I mean. Since the US and Israel launched strikes on Iran on February 28, killing Supreme Leader Ali Khamenei, Iran has effectively closed the Strait of Hormuz² — the chokepoint through which roughly 20% of the world's oil and LNG normally flows. Daily transits have dropped from an average of 138 to roughly 10³. Nearly 2,000 vessels are stranded⁴ on both sides of the narrow waterway. Brent crude has surged past $100, and the WTO chief has called it the "worst disruptions in the past 80 years." The closure has been described as the largest disruption to energy supply since the 1970s crisis².

Within this catastrophe, Iran has done something far more consequential than letting a few Pakistani tankers through. It has built a geopolitical sorting mechanism at the world's most important maritime chokepoint. According to Lloyd's List Intelligence⁵, the IRGC has imposed what amounts to a toll booth regime: vessels must submit cargo manifests, crew lists, and destination details to IRGC-approved intermediaries for "geopolitical vetting." If approved, ships receive a clearance code and are escorted through Iranian territorial waters around Larak Island. At least two vessels have paid approximately $2 million each, settled in Chinese yuan⁶. Iran's parliament is now drafting legislation to formalize this toll system permanently⁷, and — this is the part that should alarm everyone — Tehran has added "recognition of Iran's sovereignty over the Strait of Hormuz" to its five conditions for ending the war⁹.

This is not a story about sanctions exemptions. This is a story about Iran converting a wartime tactic into a permanent institution — one that sorts global shipping traffic along geopolitical lines, charges fees in a non-dollar currency, and explicitly bypasses the US-led financial system. As Foreign Policy reported⁸, paying money to Iran through this system could itself violate US sanctions since the IRGC is a designated foreign terrorist organization. Yet ships are transiting anyway. The system is growing.

Now let's talk about Pakistan specifically. The framing that Pakistan "extracted" a sanctions carve-out through geopolitical leverage misreads the situation. Pakistan isn't prying open a crack in the US pressure campaign. It's playing a completely different game. Pakistan has emerged as the primary mediator¹⁰ between Washington and Tehran, passing a US 15-point peace framework¹¹ to Iran through Pakistani channels. Army chief Field Marshal Asim Munir has a direct personal channel to Trump¹², forged during the 2025 India-Pakistan ceasefire. Islamabad is now hosting foreign ministers from Saudi Arabia, Turkey, and Egypt¹³ for talks on de-escalation. Germany's foreign minister has said he expects a direct US-Iran meeting in Pakistan "very soon."¹³

Trump himself reposted Dar's announcement on Truth Social. Earlier, at a Cabinet meeting, he described the initial Pakistani-flagged tanker transits as a "present" from Iran¹⁴ — proof that the interlocutors Pakistan connected him with were credible. This isn't a case of a state exploiting leverage against Washington's wishes. It's a mediator being rewarded for performing a function that both sides need.

But here's the real punchline — and the reason I think the "sanctions architecture" framing misses the forest for the trees. The US government itself has already done far more to dismantle the sanctions regime than Pakistan's 20 ships ever could. On March 20, OFAC issued General License U¹⁵, a 30-day waiver authorizing the sale of Iranian-origin crude oil already loaded on vessels. Treasury Secretary Bessent said this would "quickly bring approximately 140 million barrels of oil to global markets¹⁶." This came after Washington had already waived sanctions on Russian oil for India (GL 133, March 6), then expanded Russian oil waivers globally (GL 134, March 12). Three sanctions waivers on adversary oil in under three weeks.

The Foundation for Defense of Democracies — not exactly a dovish outfit — pointed out¹⁷ that GL U contains "no escrow mechanism and no obvious restrictions on payment channels," meaning Iran could potentially access revenue from sales of its own sanctioned crude. An analyst quoted by CNBC noted¹⁸: "If we've reached the point of loosening sanctions on the country we are at war with, we're really running out of options."

I want to be precise about what I think is happening, because the nuances matter. There is a legitimate concern about precedent-setting exemptions — about the dynamic where one country's carve-out becomes the floor for the next country's demands. That dynamic is real, and it has historical precedent in the 2012 Iran sanctions and in how India leveraged its earlier exemption in 2018-2019 negotiations. But that concern applies to a world where the sanctions architecture is fundamentally intact and the question is whether carve-outs weaken it at the margins. We are not in that world. We are in a world where (1) Iran has physically seized control of the strait, (2) the IRGC is running a yuan-denominated toll system that the US Navy has not interdicted, (3) the US has waived its own Iran oil sanctions to stabilize domestic energy prices, and (4) Iran is demanding permanent sovereignty over the waterway as a peace condition.

Pakistan's 20 ships are a rounding error in this picture. The real question is not whether other states will copy Pakistan's template. It's whether Iran's toll booth becomes the new normal — a permanent geopolitical filter on global energy flows that replaces the open maritime commons with a system where passage depends on your relationship with Tehran and your willingness to pay in yuan.

What to watch next. Three things will tell us whether we're looking at a temporary wartime disruption or a structural shift. First: does Iran's parliament actually pass the Hormuz toll legislation, and do ships begin paying systematically rather than on an ad hoc basis? CIPS transaction volumes⁸ are already elevated and tracking with reported yuan payments — if that trend accelerates, the toll system is taking root. Second: does the April 6 deadline produce anything — Trump has extended it twice now, and if it slips again without consequence, Iran's calculus that it can hold the strait indefinitely strengthens. Third: watch the Islamabad talks happening this weekend. If Pakistan can broker a face-to-face meeting between US and Iranian officials, the 20-ship deal will look like what it actually was — not a sanctions precedent, but a diplomatic down payment. If talks collapse, it will look like what Iran's critics fear: a concession extracted under pressure that bought nothing in return. My bet, based on the pace of diplomatic activity and the sheer economic pain being inflicted on everyone including Iran's nominal allies, is that some form of ceasefire framework emerges within three weeks. But the toll booth will be the hardest thing to dismantle — and it may outlast the war.