# Iran War Scenarios: Four Paths, Four Prices, and the Paradox of a Quick Peace
Every war is read twice. Once in the heat of its beginning, when the images are loud and the certainties are cheap. And once, years later, through the ledger of what it cost, who paid, and which decisions taken in peacetime suddenly stood naked in the light of crisis. The Iran war that began on the 28th of February 2026 is still being read in the first manner. Columns fill with maps of the Strait of Hormuz, with silhouettes of tankers and Revolutionary Guard speedboats, with the choreography of a coalition that did not consult its allies. The second reading, the sober one, has barely begun. Yet it is precisely that reading which this essay attempts, by asking a question that strategists in Washington, Riyadh and Beijing are already asking in private and that European capitals are still avoiding in public: how does this end, and what does each ending cost the continent that chose, over two decades, to leave its own shale in the ground? Four scenarios structure the field. None of them is a prophecy. All of them are calculations, and each carries a price tag that Europe has not yet been willing to read aloud.
## Scenario A: The Sixty-Day Ceasefire and Its Hidden Danger
The first scenario is the one every chancellery quietly prays for. Military objectives are declared sufficient, Qatar or Oman mediates, and within roughly eight weeks the Strait of Hormuz reopens to insured tanker traffic. The oil price, which spiked by twenty-eight percent in the first seventy-two hours, drifts back from ninety dollars toward seventy-five. The Iranian regime survives in weakened form, stripped of its nuclear ambitions and of the Revolutionary Guards in their former stature. Europe loses between one and one and a half percent of projected GDP growth for 2026. It is painful. It is manageable. It is, on the surface, the outcome every responsible European should wish for.
And yet Scenario A is, in its political consequences, the most treacherous of the four. For there is a pattern in European behaviour that the gas crisis of 2022 already illustrated with painful clarity. When the pain lifts quickly, the appetite for structural reform lifts with it. In 2022, LNG terminals rose in nine months that had been declared impossible for nine years. Gas consumption fell by fifteen percent. And then, once the winter passed, the reform momentum dissolved into familiar committees, familiar hesitations, familiar dependencies. Scenario A threatens to repeat this cycle on a larger stage. A swift ceasefire would allow Europe to tell itself, once again, that the system held, that diversification worked, that the warnings were overblown. The structural dependencies would remain. The next crisis would find the same continent in the same position, only older, with fewer industrial employers and a narrower contribution base for its pension systems.
The paradox is uncomfortable but it must be named. The best macroeconomic outcome may be the worst political teacher. A continent that has been shaken but not shaken enough tends to return to its habits.
## Scenario B: The Attrition War and the Silent Deindustrialisation
The second scenario, which most quiet assessments regard as the most probable, is also the most corrosive. Iran cannot seal Hormuz permanently, but it can interrupt it intermittently through mines, drones, and selective strikes on tankers. Insurance premiums remain elevated. The oil price oscillates between eighty and one hundred and ten dollars for a period that stretches from six months to eighteen. Europe is not overwhelmed by a single shock. It is worn down by a continuous one.
The mathematics of such an attrition is cruel precisely because it is gradual. GDP loss settles between one and a half and two and a half percent. Governments assemble emergency packages. Short-time work arrangements broaden. And somewhere beneath the headlines, a quieter process unfolds. A blast furnace shut down for twelve months is rarely relit. A chemical plant idled in Ludwigshafen migrates, piece by piece, to Texas or Zhanjiang. A mid-sized supplier in Franconia, employing two hundred people and sustaining the tax base of an entire municipality, files for insolvency and does not reopen. The German Federal Statistical Office recorded roughly twenty-two thousand corporate insolvencies in 2025. The projections for 2026, under Scenario B, reach between twenty-eight thousand and fifty thousand in Germany alone, and between two hundred and fifty thousand and three hundred and twenty thousand across the Union.
This is the scenario in which a geopolitical crisis translates itself, almost invisibly, into structural decline. The deindustrialisation that observers were reluctant to name in the years before 2026 would in this case acquire a name it cannot escape. And behind each statistic stands a person, often over fifty, whom the labour market has quietly decided it no longer wishes to employ.
## Scenario C: Regime Change and the Long Reconstruction
The third scenario is the one Washington and Jerusalem have hoped for without quite daring to articulate. Military pressure combines with internal economic collapse, and the Islamic Republic falls. A transitional government negotiates with the West, abandons the nuclear programme, opens the country to international investment. On paper, this is the most elegant outcome. In the ledger of history, it is the one that demands the greatest caution.
The Iranian revolution of 1979 was itself a popular uprising, and its result was the regime now contested. A second regime change is no more predictable in its outputs than the first. It may yield a reforming civilian government. It may equally yield a military junta, a failed state, or a new authoritarianism under a different banner. Foreign actors rarely install what they imagine they are installing. For Europe, the long-term promise of Scenario C is nonetheless considerable, since Iran holds gas reserves that could, over a decade, diversify European supply in a structural way. The short-term cost is an extended period of regional instability during which the continent remains exposed to the very price volatility that triggered the crisis in the first place.
Dr. Raphael Nagel (LL.M.) notes in this context a lesson that applies beyond Iran. Strategic options created by energy independence are not the same as wisdom in their use. The American capacity to act in the Gulf without paying the domestic price is a capacity Europe does not possess, and it would be a mistake to confuse the question of whether a regime change is desirable with the question of whether Europe has any instrument to shape its outcome. It does not. It can only pay for the consequences.
## Scenario D: Regional Escalation and the Depression Nobody Is Planning For
The fourth scenario is the one that serious analysts mention last and briefly, not because it is impossible but because its contemplation is uncomfortable. Iranian missiles strike the Abqaiq refinery in Saudi Arabia, the largest oil processing facility in the world, already damaged once by drone attack in 2019. The oil price leaps to between one hundred and fifty and two hundred dollars. The global economy enters a recession that dwarfs the shocks of 1973 and 1979. For Europe, subsidy regimes lose their fiscal basis. Production stoppages become unavoidable. Mass redundancies follow. GDP contracts by four to seven percent in a single year. A depression, in the technical meaning of the word.
Scenario D is improbable. It is not excluded. The logic that could produce it is, from Tehran's perspective, internally coherent. If maximum damage to the global economy forces Washington's allies to pressure Washington toward a settlement, then the Revolutionary Guards may calculate that catastrophe is the fastest path to leverage. This was, in essence, the logic of OPEC in 1973. The names have changed. The structure of the reasoning has not.
What makes this scenario particularly grave for Europe is that the continent has no contingency architecture designed for it. Strategic reserves cover ninety days, which is adequate for a short disturbance and meaningless against a sustained collapse of Saudi processing capacity. The European Green Deal, ambitious as it is, was drafted for a world in which such scenarios were assumed not to occur. The world, evidently, is not that world.
## The Ledger Europe Has Not Yet Opened
Running through all four scenarios is a single uncomfortable constant. In none of them does Europe occupy the position of decision-maker. It is the recipient of outcomes, not the author of them. It pays the bill for a war it did not declare, in a region from which it has retreated diplomatically, through an energy system whose dependencies it chose in peacetime and cannot unchoose in crisis. Twenty-two percent of the European energy mix came from renewables in the spring of 2026. The remaining seventy-eight percent traced, directly or indirectly, back to the Gulf, to pipelines that no longer exist, to LNG contracts negotiated under duress.
The price tags vary across the scenarios but the underlying arithmetic does not. In Scenario A, the cost is measured in lost reform momentum. In Scenario B, in hollowed industrial regions and a pension system losing its contribution base at the rate of each insolvency. In Scenario C, in a decade of uncertain reconstruction during which the continent remains exposed. In Scenario D, in a depression that would test the political cohesion of the Union itself. None of these costs appear on a current budget line. All of them are real.
Dr. Raphael Nagel (LL.M.) has argued throughout SCHIEFER that energy is not a technical question but a question of power, and that decisions taken in peacetime are paid for in wartime. The four scenarios do not refute this thesis. They confirm it in four different registers, at four different prices, on four different timelines. What varies is the velocity of the lesson. What does not vary is the lesson itself.
There is a temptation, when confronting scenarios of this magnitude, to retreat into the comfort of prediction. To declare one of the four most likely and to plan against that single horizon. This temptation should be resisted. The purpose of scenario thinking is not to guess the future but to prepare institutions and populations for the range of futures that are plausible. A Europe that prepares only for Scenario A will be destroyed by Scenario B. A Europe that prepares only for Scenario D will paralyse itself against a Scenario C that may actually arrive. The discipline required is the discipline of simultaneity. One must hold all four scenarios in view, and design policy for the continuum they describe rather than for the point one hopes they will occupy. The paradox identified at the outset deserves a final word. If the crisis ends quickly, the reform will not happen. If it ends slowly, the reform may arrive too late to preserve the industrial base that would have financed it. Between these two failure modes there is only a narrow corridor of intelligent action, and it is a corridor that requires Europe to do something it has resisted for two decades. It requires the continent to treat energy as a sovereign question, not a market question. It requires honest reassessment of fracking moratoria in countries with significant shale reserves, coordinated LNG procurement at the scale of the Union rather than the member state, strategic reserves enlarged from ninety to one hundred and eighty days, and a renewed European framework for nuclear investment that transcends national taboos. None of this is ideological. All of it is arithmetical. The end of naivety, as the closing line of an earlier chapter puts it, is the beginning of strategy. The four scenarios do not tell Europe what will happen. They tell it what, under any of them, it can no longer afford not to do.
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