There is a particular irony — the kind that history savors — in the fact that the United States set out in February 2026 to destroy Iran as a regional power and instead ended up cementing its dominance.

This is not a paradox – it is a pattern. Anyone who has paid attention to American foreign policy in the Middle East over the past three decades will recognize it immediately, because it has happened before, and because many of us said, in advance and in print, that it would happen again.

I wrote in “Quagmire” in 1992 that the United States had no strategic interest in becoming the permanent arbiter of Middle Eastern politics and no capacity — military, cultural or institutional — to remake the region in its image.

I wrote in “Sandstorm” in 2005 that the invasion of Iraq had not diminished Iranian power but enormously magnified it, by eliminating Tehran’s primary regional counterweight and handing the country’s Shia majority a state.

Washington’s response to both arguments, then and now, was to produce more think-tank papers, schedule more Senate hearings and launch more wars.

Now we are living in the aftermath of the latest iteration of this catastrophe, and the picture is becoming unmistakably clear: Iran has emerged from the 2026 war not as a broken state but as the preeminent power in the Persian Gulf.

The mullahs whom Donald Trump promised to sweep from the stage have been replaced, yes — but by a harder, younger, more capable military leadership under Mojtaba Khamenei and the Islamic Revolutionary Guard Corps that has shed the theological defensiveness of the founding generation and adopted the cold strategic calculus of a state that knows it survived, and knows what it survived.

This is not the Iran that signed the JCPOA. This is an Iran that has been to war and won.

Let us be precise about what “winning” means here, because Washington’s defenders will dispute the term. Iran did not win in the sense of defeating the United States militarily — no one is suggesting the IRGC routed the Seventh Fleet.

Iran won in the sense that matters strategically: it preserved the regime, demonstrated the resilience of its military and industrial capacity, neutralized the political will of its adversaries to continue the campaign and emerged with enhanced legitimacy at home and elevated prestige across the region.

It survived the decapitation attempt. It reconstituted its missile forces faster than anticipated. And it now, in practical terms, controls the Strait of Hormuz in a way that gives it leverage over the global economy that no amount of American naval presence can easily negate.

Trump declared “total and complete victory” in early March. By June, the picture had changed entirely. This, too, is a pattern. Americans in positions of power have a remarkable talent for declaring victory at the moment the consequences of the war are only beginning to accumulate.

The realist tradition in American foreign policy — the tradition of George Kennan, of Hans Morgenthau, of the Cato Institute think tank where I spent many years — warned against precisely this. It warned that states have national interests rooted in geography, history and demography that cannot be bombed away.

It warned that Iran, a civilization of three millennia with a population of 90 million and a strategic location astride the world’s most important waterways, is not a problem to be solved by air campaigns.

It warned that regime change fantasies, indulged by people who have never read Clausewitz seriously, tend to produce not compliant successor governments but radicalized, nationalized and militarized versions of the adversary one sought to eliminate.

The Gulf Arab states understood this, which is why — with the partial and characteristically cynical exception of Saudi Arabia — they denied Washington access to their airspace and made their opposition to the war unusually public.

They live next door to Iran. They cannot afford to mistake a temporarily weakened adversary for a permanently defeated one. They knew that a post-war Iran, whatever its internal configuration, would still be there in the morning, and that they would have to negotiate the terms of their coexistence with it long after the American aircraft carriers had sailed home.

The miscalculations that produced this outcome were not intelligence failures in the narrow sense. The intelligence was, by most accounts, reasonably accurate about Iran’s military capabilities, the robustness of its dispersed missile infrastructure and the IRGC’s preparations for a prolonged campaign.

The failure was political and strategic — a failure of judgment at the highest levels, rooted in the same magical thinking that sent American troops into Baghdad in 2003 expecting to be greeted with flowers.

Washington convinced itself that Iran’s restraint in 2024 and 2025 was evidence of weakness. It was, as I wrote at the time, evidence of patience.

Iran’s leadership had studied the 2003 Iraq war. They had studied the Libyan intervention of 2011. They drew the same conclusion that any serious strategist would draw: that American military operations in the region tend to be swift in their opening phases and increasingly purposeless thereafter, and that the optimal strategy for a targeted adversary is to survive the initial blow, preserve capacity and wait for American political will to erode.

This is not a novel insight. It is the strategic logic of nearly every successful asymmetric campaign of the past half-century.

The consequences now being registered across the Middle East are predictable to anyone who was not wishfully thinking. American credibility with Gulf partners has been severely damaged — not because America launched a war, but because it launched a war over their explicit objections, inflicted collateral economic damage on them through Hormuz disruptions and insurance premium explosions and then failed to achieve the objectives it promised would justify the exercise.

The United States has demonstrated, again, that it is an unpredictable partner whose grand strategic commitments are subject to the enthusiasms of whatever administration happens to be in office.

Meanwhile, Iran’s new leadership has learned the lesson of the war with the unsentimental clarity that tends to follow near-death experiences. It has shed the performative anti-Americanism of the Khomeini era — which was always as much theater as policy — and replaced it with something more purposeful and therefore more dangerous: a strategic orientation focused on deterrence through capability rather than deterrence through rhetoric.

The new generation running the Islamic Republic did not come to power defending a revolution. They came to power administering a state that had just survived a superpower’s attempt to destroy it. That is a different kind of authority, and it produces a different kind of foreign policy.

I have been writing about the Middle East and American foreign policy for four decades. In that time, I have watched Washington make the same category of error with remarkable consistency: confusing the desire for a particular outcome with the analysis required to achieve it; mistaking military dominance for political influence; and refusing to ask, before any intervention, the question that Carl von Clausewitz identified as the first obligation of the statesman — what kind of war are we entering, and what are its realistic ends?

The answer to that question, had it been asked seriously in the American winter of 2026, would have pointed toward a negotiated limitation of Iran’s nuclear program, toward the patient containment and deterrence strategies that had managed the Soviet threat for four decades without a nuclear exchange, toward the recognition that a country of Iran’s size, history and strategic position cannot be eliminated from the regional equation and must instead be managed.

It would have pointed, in short, toward the boring, unglamorous, institutionally demanding work of diplomacy that the foreign policy establishment tends to find insufficiently satisfying.

Instead, the United States got a war. And now, surveying the landscape of the post-war Middle East — with Iran’s new leadership consolidated, its regional prestige elevated, its control of critical waterways more firmly established than at any point in the Islamic Republic’s history and American influence with its Gulf partners at a multi-decade low — we are left to contemplate, once again, the distance between what was promised and what was delivered.

The hegemon that the United States sought to destroy, it created. This is the lesson. Whether Washington is capable of learning it remains, as always, the open question.