Why the current attacks on Iran are illegal under international law but justifiable under Just War Theory. Read on to find out the moral logic of the strikes on Iran.
The Legal Frame: Why the Strikes Look Unlawful
International law is deliberately narrow. It allows force only when the UN Security Council authorises it or when a state is acting in self‑defence after an armed attack. Neither condition applies here. Iran had not launched a direct attack on US or Israeli territory, and no Security Council resolution was ever going to pass with Russia and China holding vetoes.
The Charter also prohibits regime change by force. Targeting political leadership crosses into the territory of the crime of aggression. On the legal ledger, the strikes are difficult to defend.
But legality is not the same as morality. And when a regime uses diplomacy as a shield, exports violence through proxies, and pursues long‑term existential goals, the moral analysis shifts.
Why Legality Isn’t the Whole Story
Just War Theory asks whether force is morally necessary to prevent grave harm. It evaluates intention, proportionality, last resort, and the nature of the threat. When applied to Iran, these criteria lead to a very different conclusion from the one international law reaches.
Iran’s post‑1979 regime is not a conventional authoritarian state. It is a revolutionary theocracy whose ideology mandates hostility toward Israel, the United States, and the West. This is not rhetorical theatre. It is written into the constitution, embedded in the IRGC’s mandate, and expressed through decades of proxy warfare.
The aggression is not episodic. It is structural.
A Regime Built for Exporting Conflict
Iran’s leadership has spent 45 years building a network of armed proxies—Hezbollah, Hamas, PIJ, Iraqi militias, Syrian militias, the Houthis—designed to encircle Israel and pressure the United States. These groups are not independent actors. They are instruments of Iranian strategy.
Alongside this, Iran has pursued a nuclear program marked by concealment, sanitised sites, undeclared facilities, and cooperation only when cornered. The IAEA’s reports over two decades show a consistent pattern: Iran advances its program when it can, slows it when pressured, and never fully discloses what it is doing.
Diplomacy becomes a tool for delay, not resolution. And every US election cycle offers a fresh opportunity to reset negotiations, stall for time, and wait for a more favourable administration.
This is not the behaviour of a state seeking coexistence. It is the behaviour of a state preparing for a future confrontation.
The Slow‑Burn Strategy
One of the most compelling interpretations of Iran’s behaviour is that it is pursuing a long‑term, slow‑burn strategy aimed at eventually confronting Israel and the United States on its own terms. That means avoiding premature war, building asymmetric capabilities, exploiting diplomatic cycles, and using negotiations to buy time.
A central pillar of this strategy is the pursuit of nuclear capability. Nuclear weapons function in geopolitics the way a queen functions on a chessboard: they change the entire geometry of the game. States with nuclear weapons are treated differently by the great powers. They gain immunity from regime‑threatening retaliation, freedom to escalate through proxies, and leverage to coerce neighbours.
Once a regime acquires a nuclear deterrent, removing it becomes exponentially harder.
Iran understands this. Its nuclear program is not a sprint; it is a deliberate crawl toward a position where it can no longer be coerced, contained, or confronted. Its restraint is not evidence of moderation. It is evidence of patience.
A regime that wants to survive in the short term but win in the long term behaves exactly like this: calibrated escalation, proxy warfare, nuclear hedging, and ideological consistency across generations.
If this interpretation is correct, the threat is existential even if not immediate.
How Just War Theory Responds to a Threat Like This
Just War Theory distinguishes between preventive war (not allowed) and pre‑emptive action (allowed when a real, advancing threat will soon become irreversible). A slow‑burn existential threat fits the second category when intentions are clear, the threat is growing, diplomacy is being used as deception, and waiting will make defence impossible.
Iran’s behaviour meets those conditions. Its ideology is explicitly hostile. Its proxies wage continuous low‑intensity war. Its nuclear program advances in the shadows. Its diplomacy is a stalling tactic timed to US election cycles. And its long‑term strategy appears aimed at a moment when it can fight from a position of strength.
Under these circumstances, the moral case for action becomes stronger than the legal one.
Does This Justify Regime Change?
Just War Theory allows regime change only when two demanding thresholds are met: the regime itself must be the instrument of aggression, and removing it must be necessary to prevent catastrophic harm.
Iran’s regime is not simply aggressive; it is built for aggression. Its ideology, institutions, and foreign policy are inseparable from its hostility toward Israel and the West. And if the regime is indeed pursuing a long‑term strategy aimed at eventual confrontation—anchored by a future nuclear deterrent—then waiting may simply allow the threat to mature into something irreversible.
In that reading, removing the regime is not imperial overreach. It is pre‑emptive defence against a danger that cannot be neutralised any other way.
Key Takeaway
International law and Just War Theory do not always point in the same direction. Legally, the recent strikes on Iran are difficult to justify. Morally, the case is far stronger. When a regime is ideologically committed to long‑term existential harm, uses proxies to wage continuous war, pursues nuclear capability as the queen on the geopolitical chessboard, and treats diplomacy as a stalling tactic timed to US election cycles, the moral obligation may shift from restraint to action. The uncomfortable truth is that the law may forbid what morality requires.
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