WHO NEEDS THE BOMB?
Iran may be discovering that the most usable form of deterrence is not necessarily nuclear.
PART 5 OF 5 — THE END OF IMPUNITY SERIES
Iran may be discovering that the most usable form of deterrence is not necessarily nuclear.
Nuclear weapons possess a strategic quality conventional weapons cannot fully reproduce: the ability to threaten destruction on a scale that can make an adversary fear for the survival of the state itself.
That is why the bomb retains unique deterrent value.
But nuclear weapons have another characteristic that receives less attention: their use can be politically and militarily catastrophic for the state that crosses the threshold.
Conventional asymmetric systems are different.
Ballistic missiles with conventional warheads can be fired. Drones can be launched. Cyber operations can be conducted. Proxies can impose costs. Autonomous systems can be tested, lost, modified and used again.
They are usable.
DETERRENCE BY DISTRIBUTED RETALIATION
That suggests a different model of deterrence for a weaker power.
Attack us and your regional bases become vulnerable.
Blockade us and commercial shipping becomes vulnerable.
Move naval forces closer and those forces become vulnerable.
Escalate against us and your regional partners and infrastructure face additional risk.
None of those threats equals a nuclear deterrent. Together, however, they can create a persistent ability to impose costs without crossing the nuclear threshold.
The strategic objective is not to defeat the stronger military platform-for-platform. It is to make intervention sufficiently costly, uncertain and politically difficult that the stronger state changes its behavior.
THE PROLIFERATION PARADOX
There is another reason Iranian leaders might hesitate before openly crossing the nuclear threshold: an Iranian bomb could accelerate proliferation around Iran.
Saudi Arabia is already developing a civilian nuclear program. On July 22, 2026, the United States and Saudi Arabia signed a peaceful nuclear cooperation agreement, commonly called a Section 123 agreement, establishing a legal framework for U.S.-Saudi nuclear cooperation.
Reuters reported in September that the agreement allows Saudi enrichment subject to safeguards and that Riyadh is preparing to grant the International Atomic Energy Agency enhanced monitoring powers. A civilian nuclear program is not a weapons program, and the distinction must be maintained.
But Saudi Crown Prince Mohammed bin Salman has previously stated publicly that if Iran obtained a nuclear weapon, Saudi Arabia would have to obtain one as well.
From Tehran's perspective, that creates a strategic paradox: obtaining the bomb might strengthen Iran's deterrence while simultaneously encouraging its neighbors to acquire comparable deterrents.
LATENCY PLUS ASYMMETRY
This suggests a provocative possibility.
Iran's preferred strategic position may not necessarily be an openly deployed nuclear arsenal. It could be some combination of nuclear latency - preserving enough knowledge and capability to keep the nuclear option credible - and a powerful conventional asymmetric deterrent that can actually be used.
We should be careful here. We do not know that Iranian leaders have adopted this strategy, and nuclear latency itself carries serious proliferation and crisis-instability risks.
But analytically, the possibility matters.
An actual bomb can invite preventive action, deeper isolation and regional proliferation. A distributed conventional arsenal can be used repeatedly, improved through combat and expanded without automatically crossing the nuclear threshold.
WHAT IF IRAN LEARNS IT DOESN'T NEED THE BOMB?
That question sounds reassuring until its implications are considered.
If Iran decided that it did not require an assembled nuclear weapon, that would not necessarily mean it had become less dangerous. It could mean Tehran had discovered another route to deterrence: missiles, drones, cyber capabilities, proxies, maritime denial, autonomous systems and the ability to make American intervention progressively more expensive.
If so, the war's historical significance would extend well beyond whether Iran ultimately assembles a nuclear weapon.
It could demonstrate a practical doctrine for a weaker state seeking to deter a superpower without matching its military and without crossing the nuclear threshold.
That brings the five-part argument back to where it began.
American power remains enormous. But concentrated, expensive capability increasingly operates in a world of distributed, inexpensive and rapidly improving threats.
AI commoditizes everything.
If intelligence, expertise and sophisticated military capability continue becoming cheaper and more widely distributed, the ultimate commodity may be the thing great powers have historically guarded most carefully:
Power itself.
Sources
U.S. Department of Energy — U.S.-Saudi peaceful nuclear cooperation agreement, July 22, 2026
Reuters — Saudi Arabia preparing to grant IAEA more intrusive powers, Sept. 7, 2026
Read the series
- Part 1: THE END OF IMPUNITY
- Part 2: WHAT DOES IRAN HAVE NEXT?
- Part 3: CAN AN EXQUISITE MILITARY SURVIVE THE RETURN OF MASS?
- Part 4: THE ESCALATING STALEMATE
- Part 5: WHO NEEDS THE BOMB? — you are here.
Continue exploring: See the Institute’s Autonomous Warfare Tracker and AI Timeline for the broader record behind this analysis.