FRI · JULY 24, 2026 · ISSUE #051

📌 TODAY'S TOPIC

The war started on February 28. Khamenei was killed on the first night. Oil hit $100. A ceasefire was agreed. Then another. Then an MOU. Then the MOU collapsed. Brent crude surged 16% in a single week. The US Strategic Petroleum Reserve hit its lowest level since 1983. And Iran's new Supreme Leader called Trump's signature "worthless and unreliable." Here's the complete picture of the conflict that has defined 2026 — and where it stands today.

💡 The 2026 Iran war began on February 28 with US-Israel airstrikes that killed Supreme Leader Ali Khamenei on the first night — the IEA called the resulting supply disruption "the largest in the history of the global oil market"

💡 A two-week ceasefire was brokered by Pakistan on April 7–8, followed by an MOU in June to reopen Hormuz — but hostilities have now resumed, the strait is effectively closed again, and Brent crude surged 16% in a single week to $88

💡 Khamenei's son Mojtaba was named the new Supreme Leader — and has taken a hardline stance, calling Trump's signature "worthless and unreliable" while vowing to keep Hormuz closed as leverage

💡 The US Strategic Petroleum Reserve has plunged to its lowest level since 1983, VP Vance has acknowledged that "you can't bomb your way to reopening the strait," and technical-level talks with Iran remain ongoing despite the MOU's collapse

🔍 WHAT IS IT?

The 2026 Iran war is the largest and most consequential military conflict involving the United States since Iraq — and unlike Iraq, its economic consequences have been felt in every country on earth almost immediately through the oil price channel. It began on the night of February 28, 2026, when Israel and the United States launched coordinated airstrikes against Iran, destroying military and government infrastructure and killing Supreme Leader Ali Khamenei along with numerous other senior officials. Iran responded within hours with missile and drone strikes against Israel, US military bases across the Middle East, and US-allied Gulf states, while simultaneously closing the Strait of Hormuz to commercial shipping.

The Strait of Hormuz is the world's most critical oil chokepoint — a narrow waterway through which approximately 20% of the world's oil flows daily. Its closure was not symbolic. Within days, global oil prices surged above $100 per barrel for the first time since August 2022. The International Energy Agency issued an emergency warning calling the supply disruption "the largest in the history of the global oil market," and released 400 million barrels from emergency reserves — a measure that calmed prices briefly but could not substitute for the physical flow of oil that had been disrupted.

The war's first phase lasted five weeks of intense fighting. Iran's new Supreme Leader, Mojtaba Khamenei — son of the slain Ali Khamenei, named by the clerical Assembly of Experts within days — vowed to continue attacks and maintain the Hormuz closure as leverage. On April 7–8, Pakistan mediated a two-week ceasefire under which the US agreed to pause strikes on Iran's civilian infrastructure in exchange for limited Hormuz reopening. That ceasefire led to the Islamabad Talks, which ultimately failed. The US then imposed a naval blockade on Iran. In June, a memorandum of understanding was reached that sought to formalise Hormuz reopening and end the conflict — the closest the two sides came to a durable agreement.

That MOU has now collapsed. As of this week, hostilities have resumed. Iran has renewed attacks on international shipping in the Strait. A two-day US bombing campaign retaliated for the tanker attacks. On Friday, Brent crude surged 4.6% to $88 per barrel — a 16% increase from the prior week when prices had fallen to $76 on ceasefire optimism. The US Strategic Petroleum Reserve stands at its lowest level since 1983. Traffic through the Strait of Hormuz is, in the words of regional diplomats, "down to a trickle." The diplomatic track, after a flurry of Qatari and Pakistani mediation attempts, appears "moribund for now."

📖 INTERESTING HISTORY

The Iran war of 2026 did not begin in February. Its roots stretch across nearly five decades of US-Iranian hostility — and understanding that history explains why the conflict has been so resistant to resolution.

The 1979 Foundation
The modern US-Iran conflict traces to the 1979 Islamic Revolution, which overthrew the US-backed Shah Mohammad Reza Pahlavi and established the Islamic Republic under Ayatollah Ruhollah Khomeini. The subsequent 444-day hostage crisis — in which 52 American diplomats were held at the US embassy in Tehran — severed diplomatic relations that have never been formally restored. Every subsequent US-Iran crisis has unfolded in the shadow of that foundational rupture: the absence of any direct diplomatic channel means that every negotiation must be conducted through intermediaries, adding friction, delay, and the risk of miscommunication at every turn.

The Nuclear Programme — 20 Years of Escalation
Iran's nuclear programme has been the central source of US-Iranian tension for more than two decades. The JCPOA, negotiated in 2015 under Obama, temporarily constrained Iran's enrichment activities in exchange for sanctions relief. Trump's 2018 withdrawal from the JCPOA and reimposition of "maximum pressure" sanctions triggered a gradual Iranian escalation — increasing enrichment, reducing cooperation with IAEA inspectors, and building uranium stocks to levels that crossed thresholds previously considered red lines. By February 2026, Israel's assessment that Iran was weeks from weapons-grade enrichment capability provided the immediate trigger for the February 28 strikes.

The Hormuz Weapon
Iran has threatened to close the Strait of Hormuz repeatedly since the 1980s — and has periodically harassed shipping through mine-laying, speedboat provocations, and tanker seizures. The threat worked as a deterrent for decades precisely because it was never fully executed: markets priced in a fear premium without ever experiencing the actual disruption. The 2026 closure transformed a theoretical risk into a real one, demonstrating that Iran was both willing and able to disrupt the global oil supply at scale. This changes the strategic calculus permanently — future markets will price the Hormuz disruption risk meaningfully higher than before, regardless of how the current conflict resolves, because the precedent of actual closure has now been set.

The New Supreme Leader — A Known Unknown
Mojtaba Khamenei was not the most expected successor to his father. Iran's succession system — in which the Assembly of Experts selects the Supreme Leader — has no formal hereditary principle, and clerical observers had identified several other candidates. His rapid appointment reflected both the crisis conditions of the war and the Revolutionary Guards' preference for continuity of the hardline anti-American stance. His public statements since taking office have been uniformly hawkish — he called Trump's signature "worthless and unreliable," vowed to continue attacks on Gulf neighbours, and maintained his father's position that the Hormuz closure is Iran's primary leverage for extracting concessions. Whether the same hardline public stance reflects genuine strategic inflexibility or a negotiating posture designed to extract maximum concessions before an eventual settlement is the central analytical question of the conflict today.

🎯 WHY IT MATTERS TO YOU

The Iran war has been the defining macro event of 2026 — influencing everything from inflation and Fed policy to the EV adoption rate and Korea's chip export boom. Here is the current state of play and what it means.

The oil price outlook — the $88 question
The most immediate market question is where oil goes from here. Brent at $88 reflects a partial disruption scenario — markets are pricing meaningful Hormuz disruption but not the full closure that drove prices above $100 in March. The ING commodities team noted in early July that markets had been "too optimistic over the speed of the supply recovery," treating the temporary ceasefire as a permanent deal and overshooting to the downside. That correction has now begun. The range of outcomes is wide: a genuine, durable diplomatic settlement could send oil back toward $70 as it briefly reached in early July. A full resumption of hostilities with complete Hormuz closure could send Brent back above $100. The most likely near-term path — continued standoff with intermittent partial disruption — probably anchors oil in the $80–$95 range, which is high enough to keep inflationary pressure alive but not high enough to trigger the acute global economic shock of the March-April peak.

The SPR problem — a depleted buffer
The US Strategic Petroleum Reserve's fall to its lowest level since 1983 is one of the most underreported consequences of the conflict. The SPR was designed precisely for supply disruptions of this magnitude — and the administration has used it aggressively, releasing hundreds of millions of barrels since the war began. The depleted buffer means that the next Hormuz closure, if it occurs, will have less emergency response capacity available. Refilling the SPR will itself be a source of oil demand — and political pressure to refill before the next crisis adds a structural floor to US oil purchasing regardless of the diplomatic outcome.

The inflation connection — feeding directly into Warsh's dilemma
Every week the Strait remains even partially closed, energy inflation continues to feed through into the broader economy through the channels we covered in Issues #004 and #042. The Fed's June dot plot — which showed 9 of 18 members projecting a rate hike — was explicitly driven by Iran-war energy inflation. If Brent settles persistently above $85, the Fed's inflation projections for Q4 2026 will require further upward revision, and the probability of a December hike rises. If a genuine settlement drives oil below $75, the opposite happens — Warsh's committee could pivot back toward cuts faster than the market currently expects. The Iran war and the Fed are more directly linked in 2026 than at any point in recent monetary history.

VP Vance's admission — the limits of military power
VP JD Vance's statement this week that "you can't bomb your way to reopening the strait" is one of the most significant public acknowledgements of strategic limitation in the conflict to date. His reasoning — that the geography of the Strait means Iran can always threaten shipping with relatively simple and replaceable weapons systems regardless of how much infrastructure is destroyed — echoes the assessment of former Ambassador Ryan Crocker, who told CNN that bombing Iran "into submission" will not work. This admission is significant because it signals that the administration is moving, however reluctantly, toward the conclusion that a negotiated settlement is the only viable path to Hormuz reopening — and that the military track has reached its limits. Technical-level talks with Iran are confirmed to be ongoing despite the MOU's collapse. The diplomatic track is not dead. It is simply extremely difficult.

The succession wildcard
Mojtaba Khamenei's hardline public stance may or may not reflect his private negotiating flexibility. Historical precedent — including his father's own evolution from revolutionary maximalism toward pragmatic diplomacy on specific issues — suggests that Supreme Leaders can adapt their positions when the cost of not doing so becomes sufficiently clear. Iran's economy has been devastated by the combination of pre-war sanctions and war-related disruptions. The Iranian rial has collapsed. Domestic inflation is severe. The mourners who pelted Iran's top diplomat with rocks at Khamenei's funeral were expressing genuine public rage — but rage at the diplomats who agreed a ceasefire, not rage at the war itself. Public opinion in Iran is complex and divided. How Mojtaba reads that complexity — and whether he concludes that a settlement serves his consolidation of power or threatens it — is the single most important variable in the conflict's trajectory.

📊 THE NUMBER TO KNOW

125 days

The length of the US-Iran conflict as of today, July 24, 2026 — making it already one of the longest direct US military engagements since Iraq. During those 125 days: the world's largest oil supply disruption in history. A ceasefire, its collapse, another ceasefire, an MOU, and the MOU's collapse. A new Iranian Supreme Leader. The US Strategic Petroleum Reserve at its lowest since 1983. Brent crude swinging from $73 to above $100 and back to $76 and now to $88 in a single week. And VP Vance publicly acknowledging that military force alone cannot reopen the strait. The conflict that most analysts expected to last days has lasted 125 days — and counting.

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Thanks for reading MWF Macro.

Fifty-one issues in — and today we close the loop on the story that opened this newsletter. Issue #001 was the Strait of Hormuz. Issue #051 is still the Strait of Hormuz. The conflict that defined 2026's economy is not resolved, not forgotten, and not over. Forward this to someone who thought this would all be wrapped up by April.