Rubio Is Right: The Strait of Hormuz Is Iran's Economic Nuclear Weapon
Secretary of State Marco Rubio recently put it bluntly: the Strait of Hormuz is “basically the equivalent of an economic nuclear weapon that Iran is trying to use against the world.” He wasn’t being hyperbolic. He was being precise.
Iran has spent years bragging about its ability to choke the strait — the narrow waterway through which roughly 20 percent of the world’s traded oil passes. Every tanker carrying Saudi, Emirati, Kuwaiti, or Iraqi crude to Asia and Europe transits those 21 miles. Iran sits on one shore. The threat is structural, permanent, and deliberate.
Rubio’s framing collapses two conversations that Washington has too often kept artificially separate: Iran’s conventional coercive capabilities and its nuclear ambitions. The implicit question he’s asking is the right one — if Tehran is willing to hold the global economy hostage using geography and a naval threat, what does a nuclear-armed version of that same regime look like?
The weapon is only useful undetonated — for now
Critics will note, correctly, that Iran has never actually closed the strait. The obvious reason: Iran exports its own oil through it. Closing Hormuz would be economic self-immolation. The threat is coercive, not operational. In this sense, it functions exactly like a nuclear weapon — its power lies in the shadow it casts, not in its use.
But that argument cuts both ways. Iran has demonstrated a consistent willingness to push coercive threats to the edge — in 2011, 2018, and repeatedly since the Gaza conflict intensified regional pressure. Each cycle, the rhetoric escalates. The restraint so far has been pragmatic, not principled.
The deterrence question
Some analysts argue that a nuclear Iran would paradoxically become more cautious — that nuclear weapons tend to produce conservative behavior in their possessors, as they did with Pakistan and, in some respects, North Korea. This is the standard deterrence-stability argument, and it has historical support.
It also has historical limits. Deterrence theory works best when actors share a common interest in survival and operate within a roughly rational cost-benefit framework. Iran’s leadership has repeatedly signaled — through proxy escalation, terrorist financing, and apocalyptic rhetoric — that its ideological commitments sometimes override conventional strategic logic. Betting that a nuclear Iran would suddenly become a responsible deterrence actor requires more faith in regime rationality than the evidence supports.
What Rubio is really saying
The political function of his statement is to neutralize the “Iran can be managed” school of thought. You don’t have to speculate about Iranian intentions in a nuclear scenario, he’s arguing. Watch what they’re doing right now, conventionally, without one. They are openly threatening to hold the world’s energy supply hostage as a negotiating tool. They are not hiding the ambition — they are advertising it.
That is the tell. A regime that treats a global economic chokepoint as a legitimate pressure lever is not a regime that will treat nuclear capability as a burden of responsibility. It will treat it as the ultimate version of the same weapon it’s already brandishing.
Rubio’s metaphor isn’t theater. It’s a threat assessment. And it deserves to be taken seriously.