Why Iran’s Threat Keeps Coming Back

What if the Middle East’s recurring confrontation with Iran is not simply a story about a hostile regime, missiles, nuclear facilities or proxy forces, but about a political system capable of repeatedly rebuilding its power—and what would it take to change the conditions that allow that cycle to begin again?

For nearly half a century, the world has approached Iran through a relatively simple framework: the Islamic Republic is the problem, and weakening or removing its leadership is the solution.

Since the 1979 revolution, Western governments and their allies have pursued different versions of that strategy. Some have sought containment. Others have tried sanctions, diplomacy, military pressure or efforts to alter Tehran’s behavior. Still others have waited for the regime to collapse under the weight of its own contradictions.

Yet one question has remained stubbornly unresolved: Why does Iran’s strategic threat keep returning after every apparent setback?

The answer may lie in a distinction that policymakers have too often overlooked. The challenge is not simply who governs Iran. It is the political and institutional structure that allows a highly centralized state to mobilize a large population, substantial natural resources, scientific expertise, industrial capacity and sophisticated military institutions in pursuit of regional power.

That machinery is difficult to destroy.

The Machine Behind the Regime

Iran’s nuclear infrastructure, missile arsenal and network of regional partners are tangible capabilities. They can be targeted, degraded and, in some cases, destroyed.

But the knowledge required to rebuild them is harder to eliminate.

Iran is a large country with a population of more than 90 million, vast energy reserves, a substantial industrial base, universities and scientific institutions, and military organizations that have accumulated decades of experience. Destroying a facility does not erase the engineers who designed it. Eliminating a commander does not eliminate the institution he led. Destroying weapons does not necessarily eliminate the capacity to manufacture more.

That is why military victories can prove temporary.

The 2015 nuclear agreement constrained important elements of Iran’s nuclear program, but it did not fundamentally alter Tehran’s broader strategic ambitions. Its regional networks and missile development remained part of the larger picture.

The 2020 killing of Qasem Soleimani, one of the most powerful figures in Iran’s security establishment, delivered a major shock to the Islamic Revolutionary Guard Corps. Yet the networks he helped build did not disappear. Personnel changed. Structures adapted. Operations continued.

More recent strikes against Iranian military infrastructure have demonstrated that military force can impose serious costs. But they also illustrate the limits of a strategy based principally on destruction.

Facilities can be rebuilt. Weapons can be replaced. Organizations can reorganize.

The cycle continues.

Regime Change Is Not a Strategy

That reality complicates one of the most appealing answers to the Iranian problem: regime change.

The Islamic Republic undoubtedly supplies the ideological framework for Iran’s most aggressive regional policies. But replacing its leaders would not automatically transform the country into a passive regional actor.

Iranian nationalism predates the Islamic Republic. So do its geography, strategic interests, demographic weight and accumulated technical capabilities.

A government that was more pragmatic, secular or economically focused might abandon some of Tehran’s revolutionary rhetoric. Yet a powerful Iranian state would still possess reasons to seek influence across its neighborhood.

The distinction is important.

Iran should not be treated as an inherently hostile country. States are not permanently defined by the governments that rule them. Their behavior can change when institutions change, when military power is subject to different forms of oversight, and when political authority is redistributed.

The objective, therefore, should not be to keep Iran permanently weak.

It should be to prevent the concentration of political, economic and military power from once again producing an unchecked regional power project.

The Danger of Collapse

There is another risk that deserves equal attention: what happens if the Iranian state simply falls apart?

A sudden collapse of central authority in a country as large and strategically important as Iran could create consequences far beyond its borders.

Iran contains substantial ethnic, regional and political diversity. It possesses significant military capabilities and occupies a pivotal position between the Persian Gulf, Central Asia, the Caucasus and the wider Middle East.

A disorderly breakup could produce civil conflict, competing armed groups, foreign intervention and disruptions to energy markets and shipping.

For Iran’s neighbors, replacing one security problem with a far less predictable one would hardly constitute a solution.

The goal should therefore be transformation, not destruction.

Breaking the Cycle

A more durable strategy would begin with Iran’s internal political architecture.

Any fundamental restructuring of the Iranian state would have to be chosen by Iranians themselves. Outside powers attempting to impose a constitutional model could easily give Tehran a new justification for repression, allowing the government to portray reform as a foreign assault on Iranian sovereignty.

But a future Iranian political system could, with sufficient domestic consent, explore stronger forms of decentralization, federalism or other constitutional arrangements that distribute political and economic authority more broadly.

Such reforms would not magically make Iran peaceful.

They would, however, make it harder for a single political centre to monopolize the country’s wealth, military resources and foreign-policy decisions.

That distinction matters.

Constitutional reform cannot erase national ambition. Nor can it guarantee that a future Iranian government will abandon regional competition. Its value would instead lie in creating greater institutional accountability and making major external commitments more difficult to pursue without broader political consent.

The objective is to make concentrated power harder to weaponize.

Four Pieces of a New Strategy

A lasting approach would require several policies working together.

First, offensive capabilities must be constrained. Iran’s ability to develop nuclear weapons, long-range missiles and other tools of coercion cannot simply be ignored.

Second, political power must ultimately become more distributed. A system that concentrates enormous economic and military authority in a narrow ruling structure will remain capable of rapidly rebuilding its strategic capabilities.

Third, regional deterrence must remain credible. Iran and its partners must understand that attempts to impose their will through force will carry meaningful costs.

Fourth, diplomacy must remain part of the equation. Economic and political integration can provide incentives for Tehran to alter its behavior, but those incentives should be linked to measurable changes in its conduct.

None of these measures is sufficient by itself.

Military strikes can slow Iran. Sanctions can impose costs. Diplomacy can produce agreements. Regime pressure can weaken institutions. But none has permanently changed the conditions that allow Iran to recover.

That is the central lesson of the past several decades.

From Containment to Transformation

The world has repeatedly demonstrated that Iran’s power project can be disrupted.

It has not demonstrated that it can be prevented from returning.

That is because the underlying sources of Iranian strength—its population, geography, resources, institutions and accumulated expertise—survive individual military campaigns and political crises.

Even if the Islamic Republic eventually disappears, those foundations will remain.

The question, then, is not whether Iran should be strong. It is what kind of strength Iran should possess, who controls it and what institutional constraints govern its use.

A future Iran does not have to be a permanent adversary of its neighbors. Nor does it have to surrender its legitimate national interests to become one.

The more ambitious goal is a country whose considerable power is constrained by institutions, accountable to its society and directed toward national development rather than perpetual regional confrontation.

That would represent something more significant than another temporary defeat of Iran’s military ambitions.

It would break the conditions that allow those ambitions to return.

And that may be the only way to finally end the cycle.