# Trump–Iran Memorandum Reshapes Gulf Power Balance and Tests Hormuz Security *Thursday, June 18, 2026 at 2:06 PM UTC — Hamer Intelligence Services Desk* **Published**: 2026-06-18T14:06:55.172Z (3h ago) **Category**: geopolitics | **Region**: Middle East **Importance**: 10/10 **Sources**: OSINT **Permalink**: https://hamerintel.com/data/articles/7894.md **Source**: https://hamerintel.com/summaries --- **Deck**: A new U.S.–Iran memorandum, publicly signed by President Masoud Pezeshkian and Donald Trump, is recasting Tehran from pariah to negotiating power even as Iranian critics warn the deal betrays demands for freedom. With Hormuz traffic resuming and Washington threatening to snap back military pressure if Iran backslides, tanker crews, Gulf governments and global energy buyers are watching to see whether this truce holds. Iran’s president used his own social media account on 18 June to show what many in the region had only heard about in fragments: the full text of a memorandum of understanding with the United States carrying his signature and that of Donald Trump. Masoud Pezeshkian called the document “historic” and said it reflected the voice of a nation that would not trade its dignity and independence for threats or pressure. The image he published showed signatures from Trump and Pakistan’s Prime Minister Shehbaz Sharif, signaling Islamabad’s role in brokering or hosting the agreement sometimes referred to as the “Memorandum of Islamabad. The published text, according to Pezeshkian, codifies a ceasefire to end the latest Middle East war while setting out mutual obligations on sanctions and security. Commentators across the U.S. political spectrum immediately seized on what it means: conservative host Tucker Carlson argued that the United States is now officially treating Iran as a sovereign “great power” rather than a rogue terror state, likening the moment to the 1956 Suez crisis that marked the end of Britain’s empire. Others, including comedian Jimmy Kimmel, blasted the deal as a costly reset that leaves Iran’s leadership intact after a bloody conflict and the deaths of protesters. On the ground in the Gulf, the deal is already changing traffic patterns. Iran’s state‑aligned media said on 18 June that commercial shipping to Iran’s southern ports had “returned to normal” since Monday. Tankers are again moving through waters that had become a conflict zone as Iran and the U.S. traded blows and Tehran sought to leverage its control over the Strait of Hormuz. Iranian forces are still monitoring the strait militarily, and vessels are required to coordinate with them, signaling that Tehran intends to keep a tight grip on this chokepoint even in relative calm. For civil mariners, port workers and insurance underwriters, the difference between theoretical risk and live danger is immediate. During the crisis, crews faced the prospect of missile or drone strikes and the legal limbo of navigating a waterway that carries a fifth of the world’s traded oil. With traffic resuming, pay premiums and insurance rates could ease, but only as long as both Washington and Tehran stick to their commitments — and as long as no third party seeks to sabotage the détente. In Europe, the head of the International Energy Agency, Fatih Birol, welcomed the U.S.–Iran accord and urged the “immediate and unconditional” reopening of Hormuz, arguing that global energy flows should not be held hostage to regional conflict. At the same time, exiled Iranian figure Reza Pahlavi denounced the agreement, saying that tens of thousands of Iranians had died for democracy, not for a nuclear deal or the managed reopening of a strategic strait. His comments underline a clash between external powers prioritizing stability and energy security and dissidents who see any legitimization of the Islamic Republic as a betrayal. The deal is also reshaping security debates in Washington. U.S. Secretary of War Pete Hegseth, speaking separately, warned that the United States is prepared to resume military operations and reimpose a blockade on Iran if Tehran fails to meet its commitments, making clear that the truce is contingent. He has also lashed out at NATO allies for refusing to fully support previous U.S. operations against Iran, calling the alliance a “paper tiger” and telegraphing a review of American force posture in Europe as resources are reprioritized. Gulf Arab states, particularly Saudi Arabia, are weighing what this means for their own security calculus. Riyadh’s foreign minister said Iran’s attacks had hit not just the kingdom but all Gulf Cooperation Council states, fracturing already fragile trust that had only begun to be rebuilt after earlier rapprochement. With the U.S. now striking a direct understanding with Tehran, Gulf leaders must decide whether to lean into this new architecture or hedge by deepening other security ties — including with Europe and Asia. The stakes extend far beyond regional rivalries. If Hormuz’s status shifts from crisis flashpoint to managed corridor under a U.S.–Iran framework, benchmark oil prices and long‑term investment in alternative routes and pipelines could move accordingly. But if Iran interprets the memorandum as a green light for more assertive behavior under the guise of recognized power, shipping companies and traders may find that the risk discount they briefly enjoyed evaporates. Hormuz risk does not need a full blockade to matter — only enough uncertainty to make ships, insurers and governments hesitate. The key signals now will be whether Iran relaxes its military footprint in the strait, how quickly international shipping and insurance metrics normalize, and whether Washington follows through on Hegseth’s conditional threats if Tehran tests the limits of the deal.