Geopolitics + Markets • March 2026

No Exit: The War Over the Strait of Hormuz

A month into the war, diplomacy appears secondary to coercion and escalation remains the dominant dynamic. Here is what has happened, what each side appears to want, and how this ends in all the ways it realistically could.

Note on sourcing: This analysis synthesises reported claims, official statements, and market implications drawn from coverage as of 29 March 2026. Many underlying facts remain contested or only partially independently verified. Where inference goes beyond reported claims, it is signalled as such.

On 28 February 2026, during active nuclear negotiations, the United States and Israel launched a surprise attack on Iran. According to widely reported accounts, Supreme Leader Khamenei was killed in the first hours. A month later, the Strait of Hormuz is effectively closed, ships are stalled across the Persian Gulf, and both sides are still firing. There is no ceasefire, and current incentives do not yet point toward a durable one.

What Has Happened: The Timeline

Phase 1: Domestic unrest and pre-war pressure
JAN 2026
Mass protests erupt across Iran
Reported as the largest since 1979, with an estimated 5 million participants. Security forces respond with lethal force. Trump issues military threats.
MID-FEB
US and Iran begin indirect nuclear talks
Negotiations open via intermediaries, framed publicly as a de-escalation effort.
Phase 2: Interstate war begins
28 FEB
Operation Epic Fury begins
US and Israel launch strikes mid-negotiation. Khamenei reported killed on Day 1. Multiple senior officials killed in the opening hours. US Central Command claims 11,000+ targets struck since the war began.
1 MAR
Iran closes the Strait of Hormuz
Transit drops from approximately 130 ships per day to under 6. Roughly 150 freight ships reported stalled in the Gulf. Iran launches drones and missiles at Israel and US bases across Bahrain, Qatar, Kuwait, Jordan, Saudi Arabia, and the UAE.
1 MAR
2,500 US Marines arrive in region
31st Marine Expeditionary Unit deployed. Positioned for a possible Hormuz ground operation.
Phase 3: Attrition and failed diplomacy
5 MAR
Iran's missile rate begins declining
Over 500 ballistic and naval missiles and nearly 2,000 drones fired since Day 1. Analysts attribute the slowdown to depletion and a deliberate rationing strategy.
MID-MAR
E3 back defensive measures; Lebanon front opens
UK, France, Germany signal support for proportionate defensive action against Iranian drones. UK confirms Iran fired missiles at British-American base in the Indian Ocean. Israel deploys additional troops into southern Lebanon.
25 MAR
US 15-point proposal delivered; Iran rejects it the same day
Delivered via Pakistan. Covers sanctions relief, nuclear rollback, missile limits, Hormuz reopening. Iran's counter covers Hormuz sovereignty, reparations, a no-future-war guarantee, and full missile program retention.
26 MAR
Israel kills IRGC Navy chief Tangsiri
The commander directly responsible for the Hormuz blockade killed along with senior intelligence and operations chiefs. Israel simultaneously accelerates targeting in Tehran and Isfahan.
26 MAR
Trump extends Hormuz deadline to April 6
Iran allowed a reported 10 tankers through as a goodwill gesture. The IRGC simultaneously warned all other ships the strait remains closed. This is the second extension of the deadline.
28 MAR
Civilian infrastructure struck on both sides
US-Israeli strikes damage a Tehran university and a large water reservoir in Khuzestan. Iran targets Dubai, destroying a depot it claims was supporting US operations.
29 MAR
Hot war, no ceasefire, Hormuz effectively closed
Iran's FM publicly: "We never asked for a ceasefire." Iran's Parliament moving to formalise Hormuz transit fees. April 6 deadline the next significant decision point.

The succession problem sits at the centre of the current impasse and is worth flagging before the analysis continues. When Khamenei was killed, control did not pass to pragmatists. The IRGC now runs Iran with limited civilian constraint. Leadership decapitation can harden a regime when it removes figures capable of authorising compromise and empowers actors whose legitimacy depends on resistance. That appears to be the dynamic here: any successor who negotiates a settlement resembling capitulation would be delegitimised immediately among the base it needs to govern. The attrition path is not just a military strategy; it is the politically survivable one for a post-decapitation government.

The Damage Scorecard

The scale of damage on both sides matters for understanding how entrenched each party has become. Losses this large do not make de-escalation easier; they typically make it harder, because any leadership that stops now has to explain what the cost was for.

Iranian Leadership Killed
  • Supreme Leader Ali Khamenei, reported Day 1
  • Intelligence Minister, confirmed killed
  • IRGC Navy Chief Alireza Tangsiri, 26 March
  • IRGC Navy intelligence and operations chiefs, same strike
  • Multiple senior officials in opening hours
Iranian Infrastructure
  • 11,000+ targets claimed struck by US CENTCOM
  • Military bases and government facilities
  • Isfahan arms factories and defence infrastructure
  • Khuzestan water reservoir, civilian
  • Tehran university buildings, civilian
  • Uranium enrichment capacity reportedly "decimated"
Israeli and Gulf Damage
  • 1,706 Israelis treated by emergency services since Day 1
  • Ongoing ballistic missile barrages on central Israel
  • US Patriot maintenance facility struck in Bahrain
  • Dubai targeted; anti-drone depot destroyed
  • Lebanon front reopened with fresh troop deployments
Global Economic Damage
  • Hormuz transit: approximately 130 ships per day to under 6
  • Roughly 150 ships stalled across the Persian Gulf
  • Around 20% of world oil and gas trade disrupted
  • Energy prices elevated globally
  • Fertiliser shortages already affecting US farm states
  • Iran formalising Hormuz transit fees in Parliament

The damage to Iranian leadership is significant but has not produced the expected strategic effect. Removing the top command did not appear to weaken Iran's hold on Hormuz; it removed figures who might have been capable of authorising compromise and replaced them with hardliners whose claim to legitimacy rests on resistance. Meanwhile, the global economic damage is cumulative and distributes across importing countries, including the US, in ways that add political cost to Washington rather than Tehran. The side absorbing the most military damage is not necessarily the side bearing the highest political cost.

What Each Side Appears to Want

The proposals exchanged via Pakistan are not just misaligned on details. They are structured around incompatible premises on Hormuz, which means the gap is not only a bargaining problem but also a problem of incompatible political framing.

Party Core Objective Minimum Acceptable Red Line
USA Permanent end to Iran nuclear program, Hormuz open, Iran unable to rebuild Hormuz reopened, missile limits, nuclear freeze Iran with nuclear capacity or permanent Hormuz closure
Israel Maximum irreversible degradation of Iran's military and nuclear capability Enrichment destroyed, Hezbollah suppressed Any deal leaving Iran capable of rebuilding within years
Iran Regime survival, guarantee of no repeat attack, retain strategic leverage Hormuz sovereignty recognised, missiles intact, sanctions lifted Unconditional surrender, Hormuz relinquished, nuclear program dismantled
Gulf States Hormuz open, war ends before their infrastructure is targeted Neutral transit through the strait, no escalation on their soil Being drawn into the war as direct combatants

Put the US and Iran side by side on Hormuz and the structural incompatibility becomes clear. The US treats Hormuz reopening as a precondition for talks. Iran treats Hormuz sovereignty as the reward for concluding talks. These are not positions that split the difference: the US is saying "open the strait and then we negotiate," while Iran is saying "recognise our control over the strait as part of any deal." Israel's revealed preference, within this framework, appears to be continued degradation of Iranian capability rather than an early bargain, which means Israel's incentive is to keep fighting regardless of what the US and Iran are doing at the table.

The US demands Hormuz open as a precondition. Iran demands Hormuz sovereignty as the reward. That is not a negotiating gap. That is two different framings of what Hormuz is. The framing problem

What Each Side Appears to Be Doing

United States

"We Negotiate with Bombs" / Hegseth, US Defence Secretary

The strategy here is compellence: using force to make the other side stop doing something specific. In this case, the US wants Iran to open the strait. The mechanism is strikes plus deadlines, with extensions granted when Iran makes small gestures. This is textbook compellence in design. The problem is that compellence only works when the cost of not complying exceeds the cost of complying. For Iran, giving up Hormuz appears to cost more politically than absorbing bombs. Every deadline extension signals to Tehran that the real threat has not arrived yet, which reduces pressure to comply rather than increasing it. Trump faces a bind: actually striking energy infrastructure would cause a price shock that rebounds on American consumers and US political allies. Iran's revealed behaviour suggests it has read this constraint correctly.

Iran

War of Attrition: Outlast Rather Than Concede

The apparent strategy is not to win militarily but to make the war expensive enough globally that the US eventually accepts terms closer to Iran's position. Hormuz is the instrument: a fifth of the world's traded oil and gas normally flows through that strait. Every week of closure adds to global energy prices, US inflation, and political pressure on Washington heading into midterms. Iran also appears to be rationing its missiles deliberately, knowing it started with a finite stock. The underlying logic seems to be: preserve enough deterrence to make a ground operation against the strait genuinely costly, while the economic clock runs. Adding to this, with hardliners now in effective control and no civilian authority with the political cover to offer concessions, the attrition path is the only domestically sustainable one for Iran's current leadership.

Israel

Damage Maximisation: Irreversible Degradation

Israel's revealed preference appears distinct from the US position. Rather than a negotiated settlement, Israel's actions suggest a priority on determining the condition Iran is in when the shooting eventually stops. Confirmed reporting indicates Israel was accelerating targeting around each ceasefire rumour specifically to maximise destruction before any pause could lock in. This is rational within Israel's frame: a ceasefire that leaves Iran capable of rebuilding would be seen as a strategic failure. A ceasefire after maximum degradation is the acceptable version. This means Israel's incentive is systematically to keep fighting a little longer, and any US-brokered deal would be fragile if Israel judged it incompatible with its core security objective.

The Game Theory, in Plain English

The following concepts are standard tools in conflict bargaining analysis. They are not predictions; they are a way of asking whether the current structure of incentives supports a stable stopping point.

Nash Equilibrium

A situation where no player can improve their outcome by unilaterally changing their strategy. In a ceasefire context, this means that given the other side is not fighting, neither side has an incentive to resume. If either side would gain by breaking the ceasefire, then peace is not a Nash equilibrium. Under current incentives, continued conflict appears more self-enforcing than a stable ceasefire, because at least one key actor retains incentives to keep fighting even if another seeks restraint. With three players whose preferences diverge, the more accurate framing is: the current incentive structure does not yet support a self-enforcing peace.

BATNA: Best Alternative to a Negotiated Agreement

What each side falls back on if there is no deal. Iran's fallback option appears more durable than many initial outside assessments implied: it is not peace without terms but continued attrition with Hormuz as the primary bargaining lever. The US fallback is military seizure of the strait, technically feasible but operationally and politically costly. The relative strength of Iran's BATNA is one reason the attrition equilibrium has held longer than compellence theory would predict.

Credible Threats and Commitments

Repeated deadline extensions weaken the credibility of coercive threats. Each time the US extends without acting, the cost Iran attributes to continued defiance falls. At the same time, neither side appears able to make a believable commitment that a concession today would prevent renewed conflict tomorrow. Iran has no mechanism to trust that opening Hormuz would lead to sanctions relief rather than a renegotiated US position. That mutual credibility problem compounds the framing incompatibility described above.

Coalition Instability

The US and Israel are formally aligned but appear to have divergent preferred outcomes. In coalitions, the actor with the strongest preference for continued action can shape outcomes disproportionately, especially when it can independently escalate without the other's authorisation. Israel's ability to conduct independent strikes means it can effectively veto a ceasefire it judges inadequate, regardless of what the US agrees at the table.

Decapitation Paradox

Leadership decapitation can harden a regime when it removes figures capable of authorising compromise and empowers actors whose claim to legitimacy depends on continued resistance. Whether Khamenei represented a moderating constraint relative to his successors is debatable, but the structural effect is observable: the actors now running Iran have no political incentive to be seen as the government that negotiated from a position of military attack.

Taken together, the current incentive structure does not appear to support a self-enforcing ceasefire. Iran's fallback of holding Hormuz remains viable. Israel's incentive is to keep fighting. The US wants a deal but has weakened its own coercive leverage through repeated extensions. These three positions do not converge on a shared stopping point under current conditions.

How This Ends: Five Scenarios

How these scenarios are ranked
Scenarios are ordered by how much needs to change from the current state for each to activate. A scenario ranked higher requires fewer new decisions or unlikely events. This is not a probability forecast. The ranking reflects the logic of the current incentive structure as of 29 March 2026. Each scenario block shows what conditions must hold, what would move it up, and what would move it down. Use those signals, not a number, to assess where things are heading.
Scenario 1: Base Case

Grinding Attrition: Hormuz Partially Open, War Continues

Requires
No new decisions from any party. This is the continuation of the current state. Ranked first because it is the only scenario that activates automatically.
More likely if
Trump extends the April 6 deadline a third time; Iran's missile rationing holds; economic pressure on the US remains below the threshold for action; no Iranian actor with political cover emerges to negotiate.
Less likely if
Trump acts on energy infrastructure; Iran makes a genuine Hormuz concession; US domestic energy price shock accelerates the political timeline.

Iran's missile stocks deplete further. Economic pressure builds globally. Iran selectively allows some tankers through, enough to reduce international outrage but not enough to relinquish effective control. The US extends deadlines again. No formal deal, but a de facto managed standoff develops: Hormuz is "open" in practice for most non-US, non-Israeli traffic while both sides claim they are not losing. The hardliner succession in Iran reinforces this path specifically because no Iranian actor currently has the political cover to exit it.

For India: Prolonged and unpredictable supply access on crude, LPG, and LNG. Not a one-off price shock but a sustained fiscal drag. CAD widens, CPI passthrough accumulates, rupee drifts. The full supply chain implications are in the Hormuz exposure piece.

Scenario 2: Plausible Alternative

A Face-Saving Formula on Hormuz

Requires
A creative framing on Hormuz that lets Iran claim sovereignty and the US claim compliance. An Iranian actor with authority to sign. Israel judging the deal acceptable or being constrained from continuing independently.
More likely if
A moderate IRGC faction emerges willing to trade Hormuz leverage for sanctions relief; US-Israeli alignment tightens; a third-party mediator (Pakistan, Oman) proposes the face-saving formula before either side does.
Less likely if
Hardliner consolidation in Iran deepens; Israel conducts high-casualty strikes that harden Iranian domestic opinion; Trump publicly commits to unconditional Hormuz reopening removing the room for face-saving.

The only deal structure that appears viable lets Iran claim something resembling sovereignty without the US explicitly conceding it. The most plausible form: a transit-fee arrangement in which Iran collects fees from ships using a designated corridor, frames it as sovereign authority, while the US describes it as compliance with international norms. Partial sanctions relief and a nuclear freeze complete the package. Two structural obstacles remain: IRGC hardliners have limited incentive to sign anything short of full recognition, and any deal would be fragile if Israel judged it inadequate and continued strikes independently.

For India: Significant relief across crude, LPG, LNG. Rupee recovers. The structural vulnerability remains but markets get a clear directional signal.

Scenario 3: Escalation Risk

US Strikes Iranian Energy Infrastructure

Requires
The April 6 deadline to hold without further extension. Trump judging the political cost of a third extension to exceed the cost of the resulting energy price shock. Iran making no meaningful Hormuz concession before April 6.
More likely if
Iran's IRGC publicly contradicts Trump's claims about ships transiting (this has already happened once); US farm-state political pressure on midterms accelerates; energy markets price in the threat and Trump's credibility becomes the story.
Less likely if
Iran allows a meaningful number of tankers through before April 6; global oil price spikes to a level that frightens the White House; a third-party mediator produces a framework worth extending for.

The April 6 deadline arrives. Iran has not opened Hormuz in any meaningful way. Having extended twice, the political cost of a third extension begins to exceed the cost of acting and absorbing the resulting price shock. US strikes refineries and power plants. Iran retaliates against Gulf energy infrastructure or US naval assets. Oil spikes sharply. The war expands geographically and the managed-attrition equilibrium breaks into something harder to contain. The key dynamic here: each extension without action further reduces the threat's credibility, which is itself a reason the scenario could accelerate.

For India: Acute rather than chronic. USDINR 90+ appears a realistic outcome in this scenario. The scenario analysis in the earlier piece applies in full.

Scenario 4: Tail Risk

Military Seizure of the Strait

Requires
Scenarios 1, 2, and 3 to have all failed to resolve the Hormuz closure. Political and casualty tolerance sufficient for a combined-arms maritime operation. Congressional and allied support.
More likely if
Energy infrastructure strikes (Scenario 3) fail to open Hormuz; Iran's IRGC coastal forces are sufficiently degraded by prior airstrikes; Trump frames the operation politically as "ending it."
Less likely if
Casualty projections from military planning leak; allied opposition stiffens; oil markets signal the economic cost would be too severe even for a successful operation.

The 2,500 Marines in region conduct a combined-arms operation: mine clearance, suppression of IRGC coastal defences, naval escort of tankers. The assets are positioned for exactly this, but the operational complexity of a defended strait is genuinely enormous. Iran's remaining arsenal is spent in resistance. The strait opens by force, at a cost in US casualties and Iranian civilian deaths that would test political tolerance across the region. Ranked as tail risk because it requires the failure of every less costly option first, not because the capability is absent.

For India: Short spike followed by rapid normalisation once the strait is physically open. Geopolitical realignment accelerates; India's non-alignment posture comes under sharp external pressure.

Scenario 5: Extreme Tail

Iranian Regime Collapse

Requires
Internal Iranian fragmentation sufficient to produce a coup or governing collapse. The conditions exist on paper; the historical base rate of this outcome during active external wars is very low.
More likely if
IRGC factional splits become public; food or fuel shortages reach crisis level inside Iran; the January protests resume with IRGC units refusing orders.
Less likely if
External attack continues consolidating Iranian national sentiment; IRGC command structure remains intact; economic pain stays at current levels rather than accelerating.

Internal fragmentation between IRGC factions and remaining civilian structures produces a collapse or coup. A successor government negotiates from weakness and Hormuz reopens. State collapse is consistently rarer than conditions suggest, and external attack typically consolidates sentiment even around unpopular governments. Regime collapse tends to happen in the aftermath of wars, not during them, precisely because external threat gives the ruling structure something to rally against.

For India: Best long-run outcome for energy security, with a disruptive transition period before supply normalises.


Scenario Summary

Scenario Ranking Hormuz Status Timeline India Impact
1. Grinding Attrition Base Case Partially open, managed April through summer Moderate, prolonged fiscal drag
2. Face-saving deal Plausible Opens with transit fees April to May Relief rally, structural risk stays
3. US energy strikes Escalation Risk Closed, escalating Post April 6 Severe, USDINR 90+, fiscal shock
4. Military seizure Tail Risk Forced open May onwards Spike then sharp relief
5. Regime collapse Extreme Tail Opens in transition Unpredictable Best long-run, messy transition

The table has one uncomfortable implication. The three scenarios without a negotiated deal are all ranked above the deal scenario. The face-saving deal ranked as "Plausible" requires conditions that are not currently present: an Iranian actor with authority to sign, and either Israeli acquiescence or sufficient US pressure to restrain Israel independently. April 6 is the next clean signal: a third US extension suggests the base case continues and Hormuz disruption should be treated as chronic. Action on energy infrastructure shifts the India trade from a drift thesis to a spike thesis and changes position sizing materially.

The India Read

For import-dependent economies, the strategic question quickly becomes a balance-of-payments and inflation question. India is among the most exposed. It sources over 40% of its crude through the Strait, according to widely cited estimates, and is also heavily dependent on Hormuz for LPG and LNG. The full supply chain is covered in the Hormuz exposure piece.

The base case, Scenario 1, means prolonged and inconsistent access rather than a sharp spike that resolves. Every additional week of partial closure widens the current account deficit, raises CPI passthrough, and weakens the rupee in a way the RBI can slow but not reverse. The April 6 deadline matters significantly for how the India trade plays: a third extension suggests the drift thesis continues; action on energy infrastructure activates the spike thesis and changes position sizing materially.

The Bottom Line

A near-term ceasefire looks unlikely under the current incentive structure. The proposals rest on incompatible framings of what Hormuz is. The US has weakened its own coercive leverage through repeated deadline extensions. Israel's revealed preference is continued degradation. And the leadership decapitation that was supposed to force Iran to the table appears instead to have removed the actors most capable of authorising compromise.

The attrition scenario is not a stable equilibrium; it is the default continuation state. Iran's missile stocks will eventually matter. The economic damage to US farm states will eventually matter. Trump's credibility on the energy plant threat approaches a terminal point. April 6 is the next clear decision point: either the pattern of managed attrition continues, or the conflict moves into a sharper escalation phase.