Iran Hardliners Burned the Peace Deal—Here's What Happens Next

The Strike That Ended a Peace Deal

Three commercial vessels caught fire in the Strait of Hormuz in early July. One was a Qatar LNG carrier. The timing was not accidental: Iran and the United States had just concluded a fragile peace agreement, brokered by a deal with Donald Trump. Within 24 hours of the attack, American aircraft struck Iran. The accord was dead.

What made this moment historically significant was not the violence itself—proxy skirmishes across the Gulf are routine—but who appears to have ordered it. Iranian officials claim the strike was carried out by field commanders acting on their own initiative, without approval from central authorities. Iran’s Supreme National Security Council insists it had no advance knowledge. That explanation is either a cover for internal chaos or an honest account of a state losing grip on its own military apparatus. Both readings point to the same conclusion: Tehran is not speaking with one voice.

Who Killed the Peace Deal—and Why

According to Iranian security investigations, the man behind the decision is Hossein Taeb, a cleric who spent more than two decades running the IRGC intelligence apparatus before being dismissed in 2022 following operational failures in Israel and Turkey. The dismissal came under Ayatollah Ali Khamenei. After the Supreme Leader’s death in March, Taeb re-emerged as a kingmaker, helping install his son Motahar Khamenei as the new supreme leader. He was recently appointed head of the Basij militia, Iran’s sprawling paramilitary force.

Taeb opposed the peace agreement from the start. His recent public remarks draw a sharp line: he says negotiation is acceptable in principle, but only on terms that do not amount to capitulation. The Trump deal crossed that line in his view. By triggering an attack that Washington could not ignore, Taeb and his faction effectively burned the bridge Pezeshkian’s government had built.

President Masoud Pezeshkian reportedly learned of the strike while attending the late Supreme Leader’s funeral in Iraq. He immediately questioned IRGC Commander Ahmad Bahroudi, who denied authorising the attack. The commando branch responsible—Hatem al-Anbiya—issued no statement accepting responsibility. Those silences matter. In Iran’s political culture, claiming credit or blame is how factions signal alignment. The absence of both is a symptom of a regime whose institutional commands are being ignored.

The Leadership Vacuum

The deeper story here is not one attack but a leadership crisis that has been building for months. Motahar Khamenei assumed the role of supreme leader in March and has not appeared in public since. No voice has been released. Written statements attributed to him cannot be independently verified. Pezeshkian himself has expressed doubts about whether these documents actually reflect his predecessor’s will.

In Iran’s system, the supreme leader is the final arbiter between competing military and political factions—the IRGC, the regular armed forces, the presidency, the clerical establishment. When that arbiter is absent or invisible, factions compete directly. Hardliners like Taeb, who benefit from disruption, gain ground. Pragmatists like Pezeshkian, whose agenda depends on economic recovery through reduced tensions, lose leverage.

The government’s response has been to reshuffle the Supreme National Security Council, appointing former IRGC commander Mohsen Rezaei as its head. The selection signals an attempt to bridge military and political authority. But Rezaei’s appointment has not resolved the underlying tension. If anything, it has entrenched it—placing a former hardline commander in charge of coordinating a strategy that still has no coherent direction.

What Happens to Global Energy Markets

The Strait of Hormuz carries roughly 20 million barrels of oil per day—about a fifth of global consumption. A single sustained disruption sends shockwaves through pricing and insurance markets. The July attack on a Qatari LNG vessel is particularly significant: Qatar is the world’s largest liquefied natural gas exporter, and its fleet relies on passage through Iranian-controlled waters. Any escalation that closes or complicates the strait would hit European and Asian gas markets harder than oil markets, given the sector’s already tight supply conditions.

The current tit-for-tat between Iran and the US—Tehran targeting US naval vessels directly for the first time, Washington destroying at least eight Iranian oil tankers—has not yet triggered a full blockade. But the threshold for miscalculation has lowered dramatically. Every exchange raises the probability of the next one crossing a line neither side intends but both are now positioned to cross.

What Happens Next

Iran’s foreign minister, Abbas Araghchi, was dispatched to Oman as a mediator in an effort to de-escalate. The Iranian government has offered three justifications for the breakdown: the US failed to stop Israeli strikes on Hezbollah in Lebanon, Iran’s frozen assets remain inaccessible, and US-flagged ships continued transiting Iranian-controlled waters despite the agreement. Each excuse reflects a genuine grievance. Taken together, they reveal a regime that has found a convenient narrative to retreat from a deal it never fully committed to.

The immediate question is whether Pezeshkian can reassert authority over the IRGC and Basij, or whether Taeb’s faction will continue operating as a state within a state. The second question is whether the United States responds to further provocations with calibrated strikes or something broader. The third—what neither Washington nor Tehran may be asking—is whether any remaining diplomatic track can survive another round of violence without a verified mechanism to hold both sides accountable.

The peace deal was always precarious. Its collapse was not caused by the attack alone but by a leadership vacuum that made the attack possible in the first place. Until Iran’s power structure clarifies itself—who is truly in charge, and whether that person can enforce decisions across rival institutions—the Gulf will remain unstable. And global energy markets will price that risk into every barrel.