UNGA 81: Trump Threatens to ‘Annihilate’ Iran if No Deal Is Reached

UNGA 81: Trump Threatens to ‘Annihilate’ Iran if No Deal Is Reached

United States President Donald Trump has threatened to “annihilate” Iran if Tehran fails to reach a deal with Washington, using his address to the 81st United Nations General Assembly (UNGA 81) to defend the ongoing US military campaign against Iran.

Trump issued the warning on Tuesday, September 22, 2026, while addressing world leaders at the United Nations headquarters in New York. He framed the conflict around his administration’s stated objective of preventing Iran from obtaining a nuclear weapon and reducing what he described as Tehran’s ability to threaten countries across the Middle East.

Trump said he faced what he described as a major decision over the future of the conflict, contrasting the possibility of a negotiated agreement with further military action against Iran.

“I have a big decision to make,” Trump told the General Assembly, before asking whether a deal would be reached with Iran or whether he should “annihilate the Islamic Republic.” He also threatened to drive Iran “into hell” if an agreement was not reached.

The remarks represented a sharp escalation in the public rhetoric surrounding the US-Iran conflict, although Trump simultaneously indicated that he believed a diplomatic settlement remained possible.

Trump said he expected the United States and Iran to reach an agreement after the November 3 US midterm elections, suggesting that Tehran was waiting to see the outcome of the elections before committing to a deal.

He nevertheless said the elections would not determine his policy towards Iran and insisted that his decisions would be based on what he considers to be US national-security interests.

Trump used his UNGA 81 speech to defend the military campaign against Iran, arguing that US action had prevented Tehran from obtaining a nuclear weapon and had significantly weakened its military capabilities.

He accused Iran of supporting militant groups and contributing to instability across the Middle East, while reiterating that the United States would not accept Iran acquiring a nuclear weapon.

Trump also urged countries around the world to maintain economic pressure on Iran, calling for what Reuters described as complete economic isolation of Tehran.

The US president’s comments came as Washington and Tehran continued to face pressure to find a diplomatic route out of the conflict.

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Iran has previously signalled conditions for ending the fighting, including an end to hostilities, the release of frozen Iranian funds and an end to the US naval blockade of Iranian ports, according to reporting ahead of the UN summit.

The Iranian delegation’s response to Trump’s speech underscored the depth of the diplomatic divide.

Iranian representatives reportedly walked out of the General Assembly chamber as Trump delivered his address and criticised Tehran’s conduct.

Iranian President Masoud Pezeshkian and Foreign Minister Abbas Araghchi were in New York for the UN General Assembly, although they did not attend Trump’s address in the chamber.

Trump also used the speech to claim that the US military campaign had altered Iran’s ability to operate as a regional power.

He described Iran as having previously been a major source of regional instability and argued that American military action had changed the balance of power.

Iran, however, has rejected Washington’s characterisation of its nuclear programme and military activities and has continued to call for diplomatic engagement based on its own conditions.

The confrontation has implications beyond the two countries because of the importance of the Strait of Hormuz, a major global energy shipping route.

The waterway has remained a central concern during the conflict, with disruptions affecting oil supplies and contributing to higher energy prices. Gulf countries have also faced the risk of being drawn further into the confrontation because of their geographical proximity to Iran and their strategic relationship with Washington.

The impact on energy markets has become an increasingly important part of the political debate in the United States, particularly as the country approaches the 2026 midterm elections.

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Trump has argued that a deal with Iran could eventually help stabilise the situation and bring energy prices down, while continuing to maintain that military pressure is necessary to force Tehran towards an agreement.

US Secretary of State Marco Rubio has also indicated that Washington remains open to negotiations, even as the Trump administration maintains pressure on Iran.

Trump’s UN appearance was part of a wider diplomatic programme that included meetings with leaders from Europe, the Middle East and other regions.

The Iran war nevertheless dominated much of the attention surrounding his speech because of its implications for regional security, energy supplies and US foreign policy.

Trump also addressed the Russia-Ukraine war and other international issues, presenting his administration’s foreign policy as an effort to use American military and economic power to pressure adversaries towards negotiations.

The president portrayed his approach as different from previous US administrations, arguing that Washington had been more willing to use American power to confront international conflicts.

The remarks on Iran, however, were the most consequential part of the address because Trump explicitly presented further military escalation as an alternative to a negotiated settlement.

His comments did not result in an immediate agreement between Washington and Tehran.

Instead, the United States continued to demand major concessions from Iran while indicating that diplomacy remained possible.

Trump’s statement that a deal could be reached after the November election also leaves open a potentially significant diplomatic window, although there was no indication from Tehran during the UN session that an agreement was imminent.

The US-Iran conflict has already created wider regional consequences, including pressure on shipping, energy markets and Gulf states concerned about retaliatory attacks.

Gulf leaders meeting Trump in New York have been seeking to prevent further escalation while protecting their own countries from the consequences of an expanded war. CNN reported that Saudi Arabia, the United Arab Emirates and Qatar had previously urged Trump against a major escalation and were again concerned about being drawn deeper into the conflict.

The possibility of renewed negotiations therefore remains alongside the threat of further military action.

For now, Trump’s “annihilate Iran” warning represents a public statement of the consequences he says Tehran could face if it refuses an agreement, while his prediction of a possible post-election deal indicates that Washington has not closed the door on diplomacy.

The UN General Assembly address produced no immediate breakthrough between the two countries, leaving the conflict at a critical point as international pressure continues to build for a negotiated settlement.

UNGA 81: Trump Threatens to ‘Annihilate’ Iran if No Deal Is Reached