If Tehran or one of its proxies strikes US territory—especially the mainland—the war changes in a single hour. Until then, Washington can still indulge the fiction that this is a distant conflict: a regional fire, a manageable crisis unfolding between Israel, the Gulf, and the Strait of Hormuz. But the moment Iran brings that war to American soil (via missile or terrorist attacks), the fiction ends. From that point forward, it is no longer an Israel war, a Gulf war, or a shipping war; it is a homeland war against the United States.

In my opinion, that distinction matters because it destroys the central logic of restraint: the belief that Iran can be contained abroad at a lower cost than it can be defeated. The moment the regime shows it can reach US territory, limited management stops looking prudent and starts looking permissive. The issue then is no longer whether Washington wants a wider war, but whether the United States is willing to live with a regime that knows it can strike America without paying a decisive price.

That conclusion becomes even harder to evade when Iran is defined clearly for what it is. Iran is not a vague ideological nuisance. Rather, it is a revolutionary state moving steadily toward nuclear-threshold capability, fielding the most formidable missile arsenal in the Middle East, and sustaining a network of proxies designed to blur responsibility and widen fear. Ergo, a regime with that profile does not become less dangerous because Washington delays clarity. On the contrary, it becomes more dangerous, because delay teaches the regime that time is a shield, hesitation can be exploited, and escalation works.

For that reason, such an attack would destroy the luxury of ambiguity in American politics. Democrats who still speak of Iran as a containable irritant would finally have to choose. They could either back a serious campaign of retaliation, restored deterrence, and strategic rollback, or become the party of hesitation after the United States itself has been hit. After a homeland strike, the old language of calibrated concern would ring hollow. Under those conditions, restraint would no longer look like prudence. It would look like paralysis.

Yet that reckoning would not stop with Democrats. It would hit the “new” American right as well. Much of the MAGA base has persuaded itself that Iran is an exaggerated threat, that warnings about Tehran’s nuclear and missile ambitions are merely a pretext for another ideological crusade, and that withdrawal can still be sold as realism. Thus, an Iranian strike on America would shatter that illusion too.

With that reality established, the escalation debate changes as well. To be sure, that does not mean every maximal response suddenly becomes wise. However, it does mean that the old slogans collapse on contact with reality.

Put differently, “No more Middle East wars” is easy to chant before the enemy reaches America but far harder to defend after. Once Tehran proves that distance no longer protects the United States, the case for punishing symptoms rather than breaking the source of the threat weakens dramatically. More importantly, if the regime can strike America and survive, America will have taught every adversary watching that escalation works, deterrence bends, and the homeland is no longer a red line.

Under those conditions, the regime-change question no longer sounds like ideological excess rational strategic logic. In this scenario, the real issue is not whether removing the clerical order sounds radical but why the United States should keep accepting a cycle in which the same regime generates the same threat, absorbs limited blows, and then rebuilds for the next round. Evidently, the Islamic Republic of Iran does not rest on deep legitimacy but on repression, coercion, and the exhaustion of the society beneath it. Strategy, therefore, cannot stop at degrading capabilities. It must also ask whether the political source of those capabilities will be left standing.

Once that question moves from abstraction to strategy, the opposition question becomes unavoidable. If Washington concludes that the clerical regime itself must go, it will have to think beyond strikes and toward political end states.

On that basis, Iranian Crown Prince Reza Pahlavi becomes relevant not because he is guaranteed to return as shah, and not because he alone embodies Iran’s future, but because he remains one of the few opposition figures with name recognition, symbolic weight, and real standing among important segments of the anti-regime camp. In that sense, he matters less as nostalgia than as a possible instrument of continuity after rupture.

On the other hand, the consequences inside the United States would be just as profound. A successful Iran campaign would strengthen the Republican hawks -such as Secretary of State Marco Rubio and Senator Lindsey Graham- who still understand that credibility depends on whether enemies fear consequences. Simultaneously, it would also reinforce the argument that hostile regimes must be confronted before they metastasize.

By contrast, if such a campaign falters, the winners will be the faction trying to remake the GOP -led by Vice-President JD Vance and professional demagogue Tucker Carlson- into a party of civilizational fatigue, strategic confusion, and grievance marketed as realism. In that version of the new right, Israel becomes the scapegoat, American weakness becomes the principle, and Iran becomes the beneficiary.

Taken together, that is why an Iranian strike on US soil would do more than widen the war. Patently, this situation could settle the argument, force the Democrats to decide whether deterrence still means anything, force the populist right to choose between strategic reality and performative denial, and above all, it would force Washington to decide whether the Islamic Republic is a regime to manage or a regime to break.

At that point, the least credible position in American politics will be the claim that the ayatollahs can still be contained. Once the regime brings war to American soil, containment stops sounding prudent and starts sounding delusional. Unequivocally, a government that crosses that line is no longer asking to be deterred at the margins, but to be brought to an end.

© The Times of Israel (Blogs)