The Toll That Became the War

We guarded it for nothing, and now we’re going to guard it — we’re going to get paid for guarding it — Donald Trump

Donald Trump spoke those words on July 13, announcing himself "THE GUARDIAN OF THE HORMUZ STRAIT" while conducting 310 airstrikes on Iran in a single week and imposing a 20 percent fee on cargo transiting the waterway ^[1][2]. The declaration did not abandon the toll framework he first proposed in April. It militarized it. In April, the toll was a negotiation. Iran was charging up to $2 million per vessel in cryptocurrency or yuan for transit through the strait, and Trump proposed what he called a "joint venture" toll system. Both sides treated passage as a paid service. A 40-country coalition rejected the framework as a violation of the UN Convention on the Law of the Sea, and the idea appeared to die. It did not die. By late June, a 60-day memorandum of understanding had restored free navigation, but the toll framework survived as the diplomatic vehicle underneath ^[3]. Both sides were still haggling over insurance mechanisms and fee terms. Iran's negotiator proposed an "insurance mechanism" for commercial ships; Trump demanded "NO TOLLS, NO INSURANCE COSTS" ^[4]. The ceasefire held, barely, but the argument was never about whether passage should be paid for — only about who would collect and how much. Then the ceasefire collapsed. During the second week of July, Iran's IRGC attacked commercial tankers in the strait, the US retaliated, and by July 13 Trump had ended the ceasefire, reinstated the blockade, and conducted 310 strikes across 140 Iranian military sites ^[1]. The toll returned — but not as a diplomatic proposal. It returned enforced by B-2 bombers and Corsair unmanned surface vessels, which saw their first combat use against Bandar Abbas Naval Base ^[5]. The toll and the strikes are now the same instrument. The 20 percent fee is backed by bombing; the bombing is justified by collecting the fee. Unwinding either half means surrendering the other — the toll cannot be bargained away because 310 airstrikes stand behind it, and the military campaign cannot be de-escalated because it is the enforcement mechanism for a revenue stream. The "Guardian" of the waterway is also the party charging 20 percent to let ships through it, and the same party bombing the country on the other side. The strangest confirmation of this fusion comes from Tehran. Iran's Foreign Minister Abbas Araghchi does not reject the principle of paying for passage.

Whoever provides secure and safe passage of commercial vessels through the Strait of Hormuz should be compensated for this service. — Abbas Araghci

He only disputes the rate — the US charge is "too much" ^[2]. Both belligerents remain inside the toll paradigm. What they are fighting over is who controls the strait and what percentage to charge, not whether tolls should exist at all. No international authority accepts this framework. The International Maritime Organization was unambiguous about the legal basis — or lack of one — for what both Washington and Tehran are now doing.

There is no legal basis through which to introduce mandatory tolls simply to transit through a strait — International Maritime Organization

UK Prime Minister Keir Starmer condemned the toll as illegal ^[2]. But neither Washington nor Tehran defers to international law on this point, and the result is a waterway governed by a pricing model the world's maritime authority rejects. The insurance market registers this collision between force and commerce immediately. Lloyd's of London, unable to price risk on a waterway where the self-declared guardian is also a belligerent, has shifted to 6-hour premium windows ^[6]. War-risk insurance that cost 2 percent of vessel value during the June ceasefire now runs between 2 and 6 percent; during the initial February crisis, it hit 10 percent ^[6]. Maritime traffic has collapsed from roughly 40 vessels to 6, with 1,150 cargo vessels worth $125 billion stranded and 6,000 seafarers trapped ^[6].

It would have to be described as variable, given the continuing volatility. — Lloyd's Market Association

The cost then moves into the oil market. Crude surged 9.4 percent on July 13 after Trump reinstated the blockade ^[7]. Eni CEO Claudio Descalzi warned that prices could break out of the $80-to-$100 range by early 2027 if the conflict continues ^[8]. And from there, it reaches American monetary policy. On July 13, the Federal Reserve issued a statement explicitly attributing 4.2 percent inflation — up from 2.4 percent in January — to "energy price increases resulting from the war with Iran and the blocking of oil tankers in the Strait of Hormuz" ^[9].

If we get another hot reading on core inflation this week, then the FOMC will need to consider tightening monetary policy in the near term. — Christopher Waller

Fed Governor Christopher Waller, looking at months of elevated readings, said he would treat the next high number as "signal, not noise" ^[10].

We're building off of basically almost, you know, five to six months of 'higher, higher, higher, higher,' on inflation readings. — Christopher Waller

Prediction markets now put the odds of a rate hike before November at 76 percent ^[9]. A cargo fee on a Middle Eastern strait has become a variable in US monetary policy. The Fed named the mechanism explicitly: militarized toll plus blockade restricts passage, restricted passage drives oil prices higher, higher prices feed inflation, and inflation forces the central bank toward rate hikes. As long as the toll and the strikes remain fused into a single instrument, that transmission holds.