--- title: "Washington promises an 'economic D-Day' and Tehran threatens the Gulf's oil exports" description: "The US treasury secretary says the aim is to sever every economic lifeline Iran has left. Iran's security chief says that if the campaign continues, no petroleum will leave the Gulf, and that backing the sanctions will be treated as an act of war." category: "Business" category_url: https://newsparlor.com/category/business author: "Sofia Russo" published: 2026-08-24T04:36:57.000Z updated: 2026-08-24T04:36:57.000Z canonical: https://newsparlor.com/article/washington-promises-an-economic-d-day-and-tehran-threatens-the-gulfs-oil-exports tags: ["iran", "sanctions", "oil", "united-states", "strait-of-hormuz"] --- # Washington promises an 'economic D-Day' and Tehran threatens the Gulf's oil exports The US treasury secretary says the aim is to sever every economic lifeline Iran has left. Iran's security chief says that if the campaign continues, no petroleum will leave the Gulf, and that backing the sanctions will be treated as an act of war. Scott Bessent, the US treasury secretary, has said Washington intends to "sever every economic lifeline" sustaining Iran, ahead of an expected announcement of severe sanctions that he has described as an economic D-Day, [Al Jazeera's live coverage reports](https://www.aljazeera.com/news/liveblog/2026/8/24/iran-war-live-iranian-assembly-advances-plans-for-hormuz-service-fees). Iran has answered in kind. Mohsen Rezaei, its security chief, warned that if the campaign continues Tehran will halt all petroleum exports from the Gulf region, and that countries supporting the sanctions would be treated as committing "an act of war". ## Note what Rezaei is threatening Not Iran's own exports. The Gulf's. Iran's oil is already the target of the sanctions, so withholding it costs Washington little and Tehran a great deal. The threat only has force if it extends to the crude that Saudi Arabia, Kuwait, Iraq, Qatar and the UAE ship through the same water. That is a threat against neighbors and customers rather than against the United States directly, which is what makes it both more serious and harder to carry out. It also puts a number on the risk that has no equivalent on the sanctions side. Sanctions squeeze one economy. Closing the Gulf to petroleum touches every economy that burns it. ## The pieces are consistent This is the same week in which an Iranian parliamentary commission [advanced a draft law charging ships for passage services through the Strait of Hormuz](/iranian-lawmakers-advance-a-bill-to-charge-ships-for-passing-through-hormuz). That bill and Rezaei's warning are two versions of one idea: Iran's remaining leverage is the water, not the oil. The fee bill is the graduated form of that leverage, and the export threat is the absolute one. A state that expected to be able to keep selling oil would be legislating about invoices. A state that expected to be cut off entirely would be talking about closure. Iran is doing both at once, which is what a government hedging looks like. ## The phrase, and what it signals "Economic D-Day" is a deliberate choice of words by a treasury secretary. Sanctions are usually announced in the language of compliance and designations, and the switch to a military metaphor tells you the intended audience is not lawyers. We report it as rhetoric because that is what it is. What it describes has not yet been announced, and until the measures are published there is nothing to assess. ## What we could not establish We could not establish what the sanctions will cover, when they will be announced, Rezaei's exact title, the full context of either man's remarks, or how oil markets have responded. This account comes from live blog entries rather than a full news report, and we verified it from a single publication. ## Sources - [US promises 'economic D-Day' as Iran threatens Gulf oil exports](https://www.aljazeera.com/news/liveblog/2026/8/24/iran-war-live-iranian-assembly-advances-plans-for-hormuz-service-fees)