The strategic problem facing Washington is no longer how to destroy a fixed set of Iranian military assets. It is how to stop the Islamic Republic from rebuilding them without committing the United States to an open-ended war. JD Vance’s description of a second phase focused on preventing regeneration places that problem at the centre of the conflict. It does not, by itself, amount to a declaration of regime change.
From destruction to denial
A denial strategy is broader than a bombing campaign. It can combine selective strikes, intelligence operations, sanctions, maritime pressure, cyber activity and regional defence cooperation. Its purpose is to keep an adversary below a chosen threshold of capability. The difficulty is that the institutions rebuilding missiles, nuclear infrastructure and proxy networks are embedded in the governing system. Sustained pressure on the capabilities can therefore become pressure on the regime that reproduces them.
That logic explains why three September developments matter. CENTCOM convened senior military leaders from Israel and eight Arab states in Germany. The Trump administration prepared a $2.8 billion package for Israel that reportedly included 40,000 heavy bombs. Vance said the first phase of the war was complete and that the next would seek to prevent Iran from restoring what it had lost.
Each fact is significant, but each has limits. CENTCOM described the Germany gathering as a scheduled security conference, not the formation of an anti-Iran alliance. The munitions package had been informally communicated to Congress and was still a proposed sale. Vance’s formulation concerned the rebuilding of military power, not an announced plan to remove the government in Tehran.
A regional architecture without a treaty
The meeting nevertheless illustrates how the war is changing regional alignments. Saudi Arabia, the United Arab Emirates, Bahrain, Kuwait, Qatar, Jordan and Egypt do not share identical interests, nor do they share the same relationship with Israel. They do share exposure to missile attacks, disrupted shipping and pressure on the Strait of Hormuz and Bab al-Mandeb. Intelligence sharing, air defence and maritime coordination can deepen before any formal alliance exists.
The Islamic Republic’s regional strategy has helped produce this convergence. The more Tehran and aligned armed groups threaten waterways, bases and energy infrastructure, the easier it becomes for Washington to organise practical cooperation among governments that remain politically divided.
Where the regime-change inference begins
Israel has been more willing than the United States to connect the military threat to the survival of the Islamic Republic. Washington’s published objectives at the outset of the campaign were narrower: nuclear capabilities, missiles, naval power and support for armed groups. Officially, the fate of the regime was not the primary war aim. The distinction matters because degrading a state’s power, denying its recovery and overthrowing its political order require different resources, coalitions and standards of success.
Yet the distinction may become harder to preserve over time. If every ceasefire is followed by reconstruction and every reconstruction by another round of attack, capability denial turns into a permanent contest with the institutions of the regime. The question then shifts from which facility remains to be struck to whether the existing political structure can ever be contained at an acceptable cost.
As of 1 October, the evidence supports a transition to sustained denial, not a settled international consensus on overthrow. The confrontation remained vulnerable to renewed escalation, while diplomacy had produced no durable settlement. The next phase will therefore test whether Washington can keep military pressure limited—or whether the logic of preventing reconstruction draws it into a political objective it has not formally chosen.
