BRIEFING NOTE 41: Iran–US War
The Corridor Collapse, the Bab el-Mandeb Front, and Lebanon’s Implementation Gap
This brief is produced for analytical purposes. It does not provide price forecasts or trading recommendations.
A Rapid Refernce Brief accompanies this note. It is structured for fast consumption and decisions; operative variable and tripwire for each section
Executive Summary
US strikes on Iran paused overnight into July 25, the first pause after 13 consecutive nights, with Trump saying Washington remains in talks with Iran but has not decided on further strikes. Iranian Foreign Minister Araghchi said Iran has no problem with intermediaries exchanging messages with the US and sees no obstacle to that exchange, framing the obstacle as Washington’s approach rather than a lack of channels. The pause follows a week in which Trump hardened his public language, threatening to expand attacks on Iranian infrastructure and extending that threat to the Houthis over the Bab el-Mandeb blockade, while Rubio said the US remained open to negotiate but that Iran wasn’t serious; Iran rejected a ceasefire proposal carried to Tehran by Iraqi Prime Minister al-Zaidi, citing the unresolved status of the Strait of Hormuz. Secretary Hegseth put the war’s cost at $37.5 billion and has requested up to $70 billion more; the House adopted a $95 billion package covering the war on July 22. In Congress, the House passed a war powers resolution with the same four Republican defectors as prior votes, and Senate Republicans defeated the companion measure the same day, the twelfth such Senate vote this year. Netanyahu is scheduled to visit Washington July 27–28, coinciding with Senator Lindsey Graham’s funeral.
US strikes hit the under-construction Darkhovin nuclear power plant around July 19–20; Iran’s atomic energy body invoked the NPT directly in its condemnation, tying the strike to the conditional withdrawal threshold its parliament set out in prior weeks. Trump separately threatened to strike Pickaxe Mountain, a fortified underground facility near Natanz, during Aoun’s July 21 White House visit; Iran’s Khatam al-Anbiya command called any strike there “an explosion of war in the region.” Assessments suggest the facility’s depth may place it beyond the reliable reach of the US bunker-buster that disabled Fordow last year.
The Strait of Hormuz’s US/Oman-backed southern corridor fell to zero transits on July 22, leaving the Iran-controlled northern corridor carrying nearly all remaining traffic, itself a fraction of pre-war volumes. Yemen’s Ansarallah announced a naval blockade of Saudi-linked shipping through Bab el-Mandeb on July 20 and struck two Saudi tankers this week, one of which caught fire. Brent crude settled above $100 a barrel for the first time since May on July 23, a fifth consecutive daily rise, as equities fell the same session.
Lebanese President Aoun met Trump at the White House on July 21; Trump pledged support and reaffirmed the framework agreement but made no measurable commitment on Israeli withdrawal timing, and Israeli forces fired warning shots near Lebanese Army troops days later as the LAF began deploying into a pilot-zone village. Iran continued striking Kuwait, Bahrain, and Jordan, while sparing Qatar. Andy Burnham became UK prime minister on July 20 and endorsed continuing the existing policy allowing US forces access to British bases including RAF Fairford; the IRGC responded by naming the base a legitimate target. The US and Saudi Arabia signed a civil nuclear cooperation agreement on July 22, which Trump then said on July 23 is contingent on Saudi Arabia joining the Abraham Accords — a condition absent from the deal as signed the day before.
Section Map
Section I — Escalation Continuation: The Military Campaign and the Domestic Front
Section II — The Nuclear File: Darkhovin, Pickaxe Mountain, and the NPT Threshold
Section III — Maritime and Energy Front: The Corridor Collapse and the Bab el-Mandeb Front
Section IV — Regional and International Dynamics
