U.S.-Iran Memo Exposes Rift Over Israel, Sanctions and Oman’s Mediation Role
Washington and Tehran have electronically signed a memorandum of understanding that starts to reopen the Strait of Hormuz, but leaves sanctions, frozen funds and Israel’s military presence in Lebanon largely unresolved. Behind the scenes, U.S. officials are castigating Oman as ‘duplicitous’ and signaling that Israel’s position in Lebanon will not be bargained away, putting regional leaders, shippers and markets on notice that this is a fragile peace.
The agreement that eased the immediate crisis in the Strait of Hormuz is already testing the limits of what Washington, Tehran and Israel are willing to concede. A memorandum of understanding between the United States and Iran has been signed electronically by U.S. President Donald Trump, Vice President J.D. Vance and Iranian parliament speaker Mohammad Bagher Ghalibaf, according to senior American officials on 15 June. But the emerging details suggest more of a managed pause in confrontation than a settled strategic realignment.
Trump told reporters in France that the deal is “fully signed” and that the Strait of Hormuz is partially open, with full reopening promised by Friday. He touted absolute guarantees that Iran will not obtain nuclear weapons and insisted there is “no” early sanctions relief, describing the arrangement as “really a behavioral thing.” A senior U.S. official, however, separately indicated that Washington is willing to release some frozen Iranian funds and consider sanctions relief as part of the implementation, with goodwill steps possible in the early phase. Tehran, for its part, has publicly demanded the transfer of around $12 billion in frozen assets as a precondition for serious dialogue.
The stakes are immediate for crews sailing through one of the world’s most sensitive energy corridors, for insurers recalculating risk premiums, and for Gulf economies that rely on steady tanker traffic. Trump said the U.S. Navy’s blockade of Hormuz is being lifted in stages, describing the waterway as “toll-free” and predicting “free sailing,” while also inviting other countries to consider sending ships. For ship operators and oil traders, the practical question is how quickly those words translate into predictable, insurable passage, and whether Iranian and American naval forces can avoid the miscalculations that nearly pushed the region to the brink.
The political cost of de-escalation is already visible. A senior U.S. administration official said bluntly that Israel’s withdrawal from Lebanon is not a condition of the agreement and that Israel retains the right to defend itself if attacked by Hezbollah. Israeli media have reported that Prime Minister Benjamin Netanyahu rejected any linkage between the Iran understanding and an Israeli pullback from Lebanese territory, ruling that Israeli forces will remain. Israeli Channel 13, citing a source, described a parallel understanding between Washington and Tel Aviv that there will be no complete Israeli withdrawal from Lebanon under this deal.
Regional diplomacy has also been reordered. A senior American official, speaking to foreign journalists, accused Oman of being “duplicitous” during the negotiations and behaving “almost like employees of the Iranians,” saying Washington effectively removed Muscat from its traditional mediating role. That is a sharp rebuke for a Gulf monarchy long trusted as a quiet channel between adversaries, and it narrows the pool of actors seen in Washington as credible go-betweens for any follow-on talks if the MoU falters.
Turkey’s President Recep Tayyip Erdoğan publicly welcomed the understanding on 15 June, arguing that the agreement spared the region and the world from disaster and that “our region… breathed a sigh of relief.” He cast the U.S.–Iran deal as part of a broader shift away from war since late February, warning unnamed actors who “pinned all their hopes on the persistence of gunfire” that they would try to obstruct a strengthening “climate of peace.” His comments underscore how closely regional capitals have tied their own security calculations to the durability of this fragile détente.
The political messaging from Washington has been mixed. In public remarks, Trump has celebrated plummeting oil prices and a surging stock market, saying “a lot of great things are going to happen in the Middle East,” and insisting “we get along really well with Iran.” At the same time, he has categorically ruled out front-loaded sanctions relief, and his administration has briefed that the full text of the memorandum will not be published until after a formal signing ceremony in Geneva on Friday. That leaves lawmakers, allies and markets working from snippets and background briefings as they assess what, exactly, has been traded.
One line from a senior U.S. official captures the underlying bet: Hormuz can stay open and Israel can stay in Lebanon, as long as Iran’s behavior changes enough to dial down the risk of war. Whether that proves internally consistent is the test to come.
The next signals to watch will be the release of the MoU text in the coming days, any visible movement of tankers and warships in and around the Strait of Hormuz, concrete steps on frozen Iranian funds or sanctions waivers, and the degree to which Israel calibrates its posture in Lebanon and toward Hezbollah as Washington and Tehran move from signatures to implementation.
Sources
- OSINT