BREAKING: Irans supreme leader Mojtaba Khamenei, in a written message, says that the United States repeatedly breached commitments made under the memorandum of understanding He calls US President Donald Trumps signature worthless and invalid He says the Iranian nation and the resistance front have unforgettable lessons for the US News Analysis & Summary In a dramatic escalation of rhetoric, Irans supreme leader Mojtaba Khamenei issued a written statement accusing the United States of repeatedly violating commitments under a previous memorandum of understanding. He branded President Donald Trumps signature as worthless and invalid, signaling a complete breakdown of trust between the two nations. Khamenei further asserted that the Iranian nation and the broader resistance front would teach the US unforgettable lessons. This development comes amid heightened tensions over the collapsed nuclear deal (JCPOA), economic sanctions, and regional proxy conflicts. While direct military confrontation remains unlikely, such strong language raises the stakes for diplomatic engagement and could embolden hardline factions in Iran. My opinion: This statement appears designed to rally domestic support and project strength ahead of potential negotiations. However, labeling a U.S. presidents signature as worthless undermines any future agreement, making de-escalation harder. The rhetoric of unforgettable lessons risks miscalculation, as both sides have shown willingness to retaliate. Unless a backchannel exists, this could push the Middle East closer to a dangerous flashpoint. Source: @AlArabiya_Eng on X/TwitterPublic Engagement Views: 24,506 Likes: 40 Comments: 11 Shares: 18 Published: July 18, 2026, 4:46 pm