Iran’s Supreme Leader Mojtaba Khamenei Calls Donald Trump’s Signature ‘Worthless’, Warns US

Iran's Supreme Leader Mojtaba Khamenei has sharply escalated rhetoric against the United States, declaring that US President Donald Trump's signature on agreements with Tehran is "worthless and devoid of credibility" while warning that continued American military strikes would bring "unforgettable lessons" for the US and its allies. The remarks come amid intensifying military tensions following the collapse of a recent US-Iran understanding and renewed exchanges of attacks in the region.

Mojtaba Khamenei Accuses US of Breaking Commitments

In a written statement, Khamenei said repeated US actions had demonstrated that Washington could not be trusted to honour its commitments. Referring to the United States as the "Great Satan," he accused the US of pursuing coercion rather than diplomacy and argued that recent military operations had undermined any confidence in future agreements with Washington. US Military Launches New Airstrikes To ‘Swiftly Punish’ Iran for Deaths of Troops.

Khamenei said Iran's experience had shown that American promises carried little value, asserting that previous understandings had been violated through continued military action.

Warning Over Continued US Strikes

The Iranian leader warned that if US military operations continue, Iran and what he described as the "Axis of Resistance" would deliver "unforgettable lessons" to American forces. While the statement did not specify what actions Iran might take, it signaled that Tehran views further US attacks as likely to trigger a stronger response. The comments add to concerns that the confrontation could widen across the Middle East. US-Iran Tensions: Washington Hits More Bridges in Tehran in Expansion of Its Airstrike Campaign.

Tensions Rise After Breakdown of Ceasefire

The latest exchange follows the collapse of a recently negotiated memorandum of understanding and ceasefire between Washington and Tehran. Both sides have since accused each other of violating the agreement, with renewed military strikes reported in recent days. The deterioration in relations has raised fears of a broader regional conflict, particularly around key Gulf shipping routes and strategic infrastructure.

Diplomatic Prospects Remain Uncertain

Despite the increasingly confrontational rhetoric, analysts note that both Washington and Tehran have left open the possibility of future diplomatic engagement. However, Khamenei's latest remarks underscore the deep mistrust between the two governments and suggest that prospects for renewed negotiations remain uncertain unless hostilities subside.

(The above story first appeared on LatestLY on Jul 19, 2026 08:27 AM IST. For more news and updates on politics, world, sports, entertainment and lifestyle, log on to our website latestly.com).