Washington and Tehran's Memorandum Before Switzerland's Signing Grants Hormuz 60 Days Without Fees and Leaves Implementation Risks Open

On June 17, 2026, we are no longer facing news of a "peace agreement" in the broad political sense, but rather a practical text that Washington read to journalists and published by the AP, which was then detailed by the Guardian on the same day. The difference is significant. The announcement on June 15 was selling the public an end to war, while the memorandum of understanding that is supposed to be officially signed in Switzerland on June 19 sells both parties a short deadline to test discipline: sixty days for a final agreement, thirty days to restore traffic in the Strait of Hormuz to levels close to pre-war, and only sixty days for fee-free commercial passage.

The sources for this analysis are the AP text published on June 17, 2026, about the draft U.S.-Iranian memorandum, and the Guardian report on June 17, 2026, about the terms of the deal and its political risks. Therefore, I am not dealing here with celebratory statements, but with the terms that will collide with the port, the nuclear inspector, the bank, and the Israeli patrol in southern Lebanon.

Hormuz is Not a Key That Opens Once

The most dangerous clause in the memorandum is not that it restores navigation in the Strait of Hormuz, but that it ties the return to Iranian arrangements to remove technical and military obstacles and clear mines within thirty days. According to the AP text, commercial shipping will begin immediately, then be restored within thirty days, with an Iranian commitment to make the best efforts to secure passage without fees for only sixty days between the Gulf and the Sea of Oman.

Practically, this means that naval warfare does not end at the moment of signing. There will remain a gray area between lifting the U.S. blockade on Iranian ports and Tehran's ability to prove that the Revolutionary Guard or the new strait authority will not turn "maritime services" after the sixtieth day into a political toll system. Gulf states may accept limited rescue or navigational guidance fees, but they will not accept that the corridor on which their exports depend becomes a gate managed by the Iranian adversary.

For this reason, the phrase "no fees for sixty days" seems less reassuring than it appeared in the headlines. It is not a final settlement on freedom of navigation, but a temporary halt to using fees as a weapon. Any military personnel who has served in the region knows that the problem is not in announcing the opening of the strait, but in the first inspection incident, the first delayed ship, and the first insurance company that says the risk has not decreased enough to return prices to normal.

Lifting the Blockade on Ports Will Test U.S. Discipline Before Iranian

The text obligates the United States to begin removing the maritime blockade and any obstacles against Iran immediately upon signing the memorandum, and to completely end the blockade within thirty days. This is a significant concession as it touches the most obvious military pressure tool for Washington. In return, Iran must restore commercial traffic to pre-war levels in parallel. If either party delays, the other will have a ready excuse to say that implementation has collapsed.

Here lies the window of danger between June 17 and 19. Before the official signing, each party will try to establish its interpretation of the text. The Iranians want to portray the lifting of the blockade and freedom of passage as recognition of their sovereign role in the strait. The Americans want to depict it as a test of Iranian compliance under subsequent oversight. As for shipping companies, which are less poetic than politicians, they will ask one question: Will ships be fired upon? The Guardian reported that U.S. officials said Iran did not fire on ships in the strait the day before the briefing. This is a good sign, but it is one day, not a security system.

The Nuclear File Links Uranium to Money, Not Slogans

In the nuclear clause, Iran affirms that it will not acquire or develop a nuclear weapon, and both parties agree to resolve the fate of the stockpile of enriched materials through a mechanism they will agree upon, with the minimum being reduction or mitigation within Iran under the supervision of the International Atomic Energy Agency (IAEA). The Guardian clarified that Washington presents this as a fundamental Iranian concession, as it touches the stockpile of highly enriched uranium, not just the future enrichment level.

However, the text does not state that all stockpiles will leave Iran, nor does it resolve the right to civilian enrichment, nor does it set a final inspection schedule from now. It states that the minimum is downblending on-site and under IAEA supervision, and that details will be discussed in the final agreement. This is a practical formula if the goal is to buy time, but it is weak if the aim is to convince Israel and hardline Republicans that the Iranian program has ended as a military threat.

From a military perspective, reducing within Iran is politically less costly for Tehran than transferring the stockpile abroad, but it is more difficult in building trust. An inspector needs access, equipment, and verification rights, not a souvenir photo at a nuclear facility. If every technical dispute over the percentage of dilution or storage location becomes a reason to freeze exemptions, we will return to a war of sanctions before the missile war ends.

Oil Exemptions Are Faster Than Lifting Sanctions

One of the most sensitive clauses is that the U.S. Treasury will issue, immediately upon signing the memorandum, exemptions for exporting Iranian crude oil and its derivatives and related services, including banking transactions, insurance, and transportation. This does not mean a general lifting of sanctions. The AP and Guardian clarify that the termination of broader sanctions is linked to the final agreement schedule and Iran's performance in the nuclear file.

Washington sells the oil exemption as a realistic decision: Iranian oil was already reaching China, but at a discounted price and through less transparent channels. From a market perspective, this is partially true. From the perspective of U.S. domestic politics, it is a bombshell. Trump's opponents will say that the administration has moved within weeks from blockading Iranian ports to licensing Iranian oil trade, banks, and insurance. This cannot be separated from the congressional elections or from the anger of the faction that sees any dollar entering Tehran's treasury will eventually reach armed allies.

Frozen Assets Are Not a Check Upon Signing

The text commits that frozen or restricted Iranian funds and assets will be fully available upon the implementation of the memorandum, with both parties agreeing on release procedures during negotiations. The difference between "upon signing" and "upon implementation" is the essence of the dispute. Tehran wants the money as immediate proof that the war is over and that the nuclear concession has a price. Washington wants the money as a lock that opens after seeing implementation in Hormuz, oil, and uranium.

In my estimation, this is the most politically explosive clause. If the release is delayed, Tehran will accuse Washington of deception. If the release proceeds before clear nuclear verification, opponents of the agreement in the U.S. and Israel will say that the administration has paid upfront for promises. Experience in the region shows that delayed money kills trust, and early money kills political support. There is no clean option.

Lebanon is the Clause That the Israelis Did Not Sign

The memorandum states that the cessation of military operations includes all fronts, including Lebanon, and Guardian reports speak of a clause affecting Lebanon's regional integrity. Iran wants this to appear as a U.S. commitment to restrain Israel and force it to respect Lebanese sovereignty. Israel, as has been evident in the previous days, does not want to read the text this way, nor does it want to link its positioning in buffer zones or its operations against Hezbollah to a U.S.-Iranian memorandum of understanding in which it was not a full party to its drafting.

This is not a diplomatic detail. If a group linked to Hezbollah fires a single missile, Israel will say it has the right to respond. If Israel retaliates inside Lebanon, Iran will say that Washington has failed to guarantee "all fronts." Thus, Lebanon becomes a daily test button for the agreement. In operations rooms, there is no such thing as abstract sovereignty; there are contact lines, drones, launch orders, and field officers who fear appearing weak.

The Implementation Mechanism is the Weakest Link

Clause twelve discusses the establishment of an executive mechanism to monitor the successful implementation of the memorandum and future compliance with the final agreement. This phrase is necessary, but so far insufficient. Who sits in this mechanism? Does it include Oman, Qatar, and Pakistan? Will the UN or IAEA have a separate role? Do they have the right to declare a breach, or do they only record it? And does the U.S. have the right to automatically reimpose the blockade if shipping movements are disrupted, or does that require consultation?

Military deals do not collapse only due to bad intentions. They collapse due to procedural ambiguity at the first incident. If an Iranian boat detains a ship under the pretext of service fees after the sixtieth day, who decides that this is a breach? If Israel bombs a site in southern Lebanon and claims it is a defensive response, does that fall under the memorandum? If a committee in Congress refuses to fund or license part of the exemptions, does Iran consider that a U.S. breach? These questions do not wait for the final agreement; they will arise in the first week.

The Last Window Before June 19

The signing in Switzerland on June 19 is not the end of the crisis, but the beginning of the countdown. In the forty-eight hours leading up to it, each party will try to place its interpretation on paper before it becomes a political commitment. Iran will assert sovereignty in Hormuz and Lebanon and its right to nuclear energy. Washington will assert oversight, conditional exemptions, and no U.S. funds for rebuilding Iran. Israel and hardline Republicans will try to raise the cost of signing, not because they have an easy alternative, but because they see the memorandum as a partial Iranian recognition in exchange for broad U.S. concessions.

The harsh conclusion is that the memorandum stops the bleeding because it gives each party something it needs now: Washington gets the opening of Hormuz and the reduction of uranium under IAEA, Tehran gets a gradual lifting of the blockade and oil exemptions and a prospect for frozen funds, and the Gulf gets a chance to take its tankers out of the fire game. But it does not resolve the old contradiction: Iran wants sovereignty with regional influence, America wants compliance with a calculated withdrawal, and Israel wants freedom of action not constrained by a text it did not sign. Between these three demands, the memorandum will either live or die.

Sources: AP, June 17, 2026, text of the U.S.-Iranian memorandum of understanding; Guardian, June 17, 2026, analysis of the terms of the Washington-Tehran agreement and the risks of implementation before Switzerland's signing.