Iran is set to reject a U.S. nuclear deal proposal.
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The recent rejection by Iran of a U.S. nuclear deal proposal marks a critical moment in ongoing diplomatic efforts. On June 1, 2025, the U.S., through Omani mediation, presented a plan allowing Iran limited uranium enrichment under strict conditions.

Iran must dismantle key nuclear infrastructure and join a regional consortium. Tehran, however, demands full control over its nuclear program and clear sanctions relief, calling the proposal inadequate.
By June 2, Iranian officials, including Foreign Minister Abbas Araghchi, signaled a likely rejection, describing the U.S. offer as “incoherent and disjointed.”
It is now set to reject a U.S. nuclear deal proposal. The decision follows ongoing talks mediated by Oman. Tehran insists on its right to enrich uranium. The U.S. demands Iran halt enrichment and ship its stockpile abroad. This rejection risks escalating tensions in the Middle East.
Background of the Conflict
The U.S. and Iran have clashed over nuclear ambitions for decades. In 2015, the Joint Comprehensive Plan of Action (JCPOA) limited Iran’s nuclear program. The U.S. withdrew in 2018 under Trump, reimposing sanctions. Iran resumed enriching uranium, nearing weapons-grade levels. Recent talks aim to curb Iran’s program while offering sanctions relief. Both sides remain divided over enrichment and sanctions.
Details of the U.S. Proposal
The U.S. proposal, presented on June 1, 2025, allows limited uranium enrichment. Iran must dismantle key nuclear infrastructure and halt new centrifuge research. The plan offers sanctions relief but lacks a clear timeline. It suggests Iran join a regional enrichment consortium. Tehran views this as insufficient, demanding full control over its nuclear program.
When the Rejection Happened
Iran signaled rejection on June 2, 2025, after receiving the proposal. Omani Foreign Minister Badr Albusaidi delivered it to Tehran. Iranian Foreign Minister Abbas Araghchi called it “incoherent.” A senior diplomat labeled it a “non-starter.” Iran is drafting a formal negative response, expected soon.
Ukraine’s Response
Ukraine has not directly commented on Iran’s rejection. However, Kyiv remains wary of Iran’s role in global conflicts.
Iran has supplied drones to Russia, escalating the Ukraine war. Ukrainian officials have criticized Iran’s actions, linking them to broader security threats. No specific statements tie Ukraine’s stance to this nuclear deal rejection.
U.S. Response
The U.S. insists Iran must not develop nuclear weapons. President Trump denied reports of allowing enrichment, stating, “We will not allow any enrichment of uranium!”
The White House did not confirm proposal details but emphasized urgency. U.S. officials warn of sanctions or military action if talks fail. Negotiations continue, but momentum is fading.
The roots of this standoff trace back to the 2015 JCPOA, which curbed Iran’s nuclear activities in exchange for sanctions relief. The U.S. exit in 2018 under Trump led to renewed sanctions and Iran’s accelerated uranium enrichment, now nearing weapons-grade levels. Recent negotiations, the fifth round since April 2025, aim to prevent Iran from acquiring nuclear weapons while addressing its civilian energy needs. Iran’s insistence on enrichment rights and distrust in U.S. commitments remain key obstacles.