New details from Iran’s top diplomat about the strike that killed Supreme Leader Ali Khamenei provide some of the clearest evidence yet of the precision and strategy behind the joint U.S.-Israeli operation that launched Operation Epic Fury, counterterrorism experts said Sunday.

The account, revealed by Iranian Foreign Minister Abbas Araghchi in a new television interview, also highlights what analysts describe as a defining feature of President Donald Trump’s national security doctrine: using a decapitation strike against a hostile regime while simultaneously creating an off-ramp to end the conflict.

"Well, the building we were sitting in was targeted, but the wing we were in remained intact while the other wing of the building was destroyed," Araghchi said in an interview that aired June 4 on the Lebanon-based, Hezbollah-backed Al Mayadeen television network.

While Araghchi survived the Feb. 28 strike because he was in a different wing of Khamenei's compound when the attack occurred, he went on to detail how Khamenei was in his office and how others survived.

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Reviewing the original segment, counterterrorism expert Dr. Omar Mohammed told Fox News Digital that Araghchi’s account confirms the operation targeted a specific section of the complex rather than flattening the entire site.

"In the Arabic version, Araghchi says he was in a different wing of the compound, briefing another official, and his wing survived while the leader’s office was destroyed," Mohammed explained.

Araghchi also told the interviewer that he had an appointment that day with an official at the compound regarding the Geneva negotiations and that, based on the usual workflow, Khamenei "had to be present in his office."

Mohammed, director of the Antisemitism Research Initiative at the Program on Extremism at George Washington University, added that if Araghchi’s account is accurate, this was Iran's glaring acknowledgment of U.S. strategic capabilities.

"They did not flatten a building; they took one wing and left the one next to it standing. That is President Trump’s whole doctrine in a single strike — he does not want a war of occupation, he wants to show the United States can reach the center of a hostile regime with precision and then offer it a way out," Mohammed said.

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The daylight strike on elder Khamenei’s compound was carried out by Israeli jets targeting the site with 30 precision munitions alongside Sparrow air-launched ballistic missiles.

Military officials confirmed that a precise strike sequence killed Khamenei, 86, alongside Defense Minister Amir Nasirzadeh, IRGC Commander Mohammed Pakpour and multiple top security leaders.

Trump confirmed U.S. involvement in Khamenei’s killing in a post on social media at the time.

"He was unable to avoid our intelligence and highly sophisticated tracking systems, and, working closely with Israel, there was not a thing he or the other leaders killed alongside him could do," the president wrote.

"Iran was handed the clearest message an adversary can get — we can reach your leader in his own office, and here is the off-ramp," Mohammed noted. "A rational state takes the exit. Tehran did the opposite. It fired on Israel, killed a civilian in Bahrain, struck Kuwait, Qatar and the United Arab Emirates, and closed the Strait of Hormuz, setting off a global energy crisis. The surgical strike was American. The months-long war that followed was Iran's choice."

Following the leadership transition, Ali Khamenei's son, Mojtaba Khamenei, became Iran's new supreme leader.

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He has since been involved in back-channel discussions with the U.S. while maintaining a confrontational public stance.

"In Arabic, Araghchi calls the new leader ‘the young Khamenei in place of the elderly Khamenei.’ That is the language of a monarchy, not a republic of clerics," Mohammed observed. "They are rewriting the theology on air to fit a son who lacks the religious rank, who was wounded in the same strike and who then vanished for weeks. A revolution that came to power by ending a monarchy is handing the throne from father to son."

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"The real story is not that Iran is strong," Mohammed continued. "It was shown the precision of American power and the door was held open, and it chose to widen the war instead."

Iran's supreme leader has launched a sweeping counteroffensive against President Donald Trump, attempting to rally Middle Eastern nations into an anti-American alliance, an analyst warned Sunday.

The aggressive maneuvering came hours after Trump pitched an expansion of the Abraham Accords, as an analyst said Tehran is seeking to position itself as the region’s "new sheriff" while forcing Gulf states with backchannels to Iran to choose between Washington’s security umbrella and a "New Islamic Civilization."

On Sunday, negotiations between Iran and the United States appeared to be ongoing, with Trump not yet signing off on a potential peace agreement.

Trump recently held a phone call with leaders from Saudi Arabia, the United Arab Emirates, Qatar, Turkey, Pakistan, Egypt, Jordan and Bahrain to discuss expanding the 2020 Abraham Accords, followed by a May 25 post on Truth Social.

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Mojtaba Khamenei issued a direct counter-response on X on May 26, issuing a call for a "New Islamic Civilization" aimed at those same regional capitals.

"I, with sincerity and purity of intention, invite all Islamic countries and governments to friendship and cooperation in goodness, so that by working together we may take steps toward the advancement of the Islamic Ummah and the resolution of the Islamic world's problems," Khamenei posted.

Highlighting "the nations of the region" and "common interests that will shape the new order and the future architecture of the region and the world," he spoke of "the Islamic Ummah and the #New_Islamic_Civilization."

"The United States will no longer have a safe haven for its mischief and for establishing military bases in West Asia," he also warned.

"Mojtaba Khamenei's statement is that the Muslim world should consolidate under Iran's leadership — the 'Ummah,' the 'new Islamic civilization' — against the American-led order," Dr. Omar Mohammed told Fox News Digital.

"That is the theme, and it runs straight into the Accords narrative. This is a bid to build an alliance against the Abraham Accords," said Mohammed, director of the Antisemitism Research Initiative Program on Extremism at George Washington University.

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"In his statement, he also frames American bases on Muslim soil as an occupation to be expelled while wrapping it in religious language that casts the regime as God's instrument."

The counterterrorism expert noted that while the "Ummah" doctrine itself is not new — having been used by Mojtaba's father for years — the timing and targeted nature of the pitch represent a major escalation.

"This came into the Ummah with Iran, not into normalization with Israel under Washington," Mohammed explained. "Same audience, opposite frame, 24 hours apart, and a bid to assemble that alliance."

"The statement was published in full and carried by Iranian state media. It also tracks with his first statement as leader on March 12, when he demanded that U.S. bases in the region close."

"This was not a stray post," the expert warned. "While the doctrine is old, aiming it at these regions the day after Trump's pitch is what is new."

The posturing comes as Khamenei establishes his footing on the world stage, though his hidden nature complicates traditional diplomacy.

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"Tehran is selling itself to the region as the new sheriff of the neighborhood," Mohammed warned. 

"The Saudis, Qataris and Omanis have channels into the Iranian state, but you can't open a back channel to a man no one can locate. This has all been running through Pezeshkian and Araghchi."

Despite Iran's sudden rhetoric of "friendship," regional reality is defined by months of Iranian aggression against its neighbors.

Tehran's forces have actively fired upon Bahrain, Qatar, the UAE and Kuwait.

Mohammed added that Tehran wants to peel Gulf states away from Washington, while its threats remain aimed at both the United States and the countries that host American forces.

"Iran spent this war firing on them — it hit Bahrain, Qatar, the UAE and Kuwait, the same capitals it's now inviting to brotherhood, and the UAE alone reported intercepting close to 2,000 drones and hundreds of ballistic missiles since Feb. 28," Mohammed said. 

"These are the states that host our forces: the Fifth Fleet in Bahrain, Al Dhafra in the UAE and Al Udeid in Qatar. You don't take three months of Iranian fire and then sign onto its alliance."

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Ultimately, Gulf capitals remain deeply skeptical of Tehran, Mohammed said, but they are equally watchful of American resolve.

"What actually worries the Gulf isn't Mojtaba's invitation — it's the deal Washington might sign," Mohammed noted, "one that hands Iran its money back with its missiles intact and reads as rewarding the regime that just attacked them."