US President Donald Trump on Thursday, 21 May issued his most direct warning yet to Iran, declaring that Washington would not permit Tehran to acquire a nuclear weapon and cautioning that failure to prevent it could ignite a conflict stretching far beyond the Middle East. Trump called halting Iran's nuclear programme his administration's single most important foreign policy objective.

The Nuclear Red Line

'We cannot let Iran have a nuclear weapon,' Trump said. 'You will have a nuclear war in the Middle East, and that war will come here, that war will go to Europe.' He added that ongoing negotiations with Iran would produce a decisive outcome regardless of their result. 'Right now we're negotiating, and we'll see. But either we're going to get it one way or the other,' he said. 'They're not going to have a nuclear weapon.'

On the question of Iran's stockpile of highly enriched uranium, Trump was unequivocal: any future agreement would require the United States to take possession of it. 'No, no, we get the highly enriched. We will get it,' he said, adding that the stockpile would likely be destroyed. 'We don't need it. We don't want it. We'll probably destroy it after we get it.'

Strait of Hormuz and Naval Operations

Trump also addressed reports that Iran was in discussions with Oman over plans to formalise toll charges on vessels transiting the Strait of Hormuz, one of the world's most strategically critical oil shipping corridors. He said the United States was firmly opposed to any such arrangement. 'We want it open, we want it free. We don't want tolls,' Trump said, describing the Strait as 'an international waterway.'

Trump claimed that US naval operations had established effective control over maritime traffic linked to Iran in the region. 'There hasn't been a ship that's been able to get through without our approval,' he said. 'The Navy has done an amazing job.' This comes amid a broader pattern of heightened US military activity in the Gulf that has intensified over recent months.

Claims of Degraded Iranian Military Capacity

The President further asserted that US military strikes had severely diminished Iran's armed capabilities. 'We wiped out their navy. We wiped out their air,' Trump said. 'I would say we knocked out 85 per cent of their missile capacity.' He also highlighted what he described as a rapid expansion of American drone and counter-drone technology during operations. 'We have unbelievable drone technology, both for making them and also for knocking them down,' he said.

What Comes Next

Trump framed the Iran nuclear issue as superseding domestic political disputes and economic concerns alike, repeating: 'I can think of nothing more important than the fact that we cannot let Iran have a nuclear weapon.' Negotiations between the two sides are reportedly continuing, though no timeline or framework for a deal has been publicly confirmed. Analysts note that the combination of military pressure, sanctions, and diplomatic engagement represents a high-stakes gamble with significant implications for global energy markets and regional stability.