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Iran Update March 27, 2025

Iran responded on March 26 to US President Donald Trump’s letter proposing nuclear negotiations.[1] Iran signaled it is open to indirect nuclear negotiations with the United States but rejected direct negotiations under the current conditions. Trump sent a letter to Khamenei on March 5 that proposed negotiations on Iran’s nuclear program, and Iran responded to the letter via Oman on March 26.[2] Iranian Foreign Affairs Minister Abbas Araghchi said that Iran is open to indirect talks with the United States, though it rejects direct negotiations under the current US “maximum pressure” campaign and US-Israeli threat of military action against Iran’s nuclear program. US Director of National Intelligence Tulsi Gabbard stated on March 25 that Trump’s letter to Iran proposed “direct talks” and emphasized that “there would be military consequences if there were no direct negotiations.”[3] It is unclear if Iran’s openness to indirect negotiations will fulfill US conditions to grant sanctions relief or avoid military action against Iran’s nuclear program.

This likely suggests that Iranian Supreme Leader Ali Khamenei has approved indirect negotiations with the United States. Araghchi said that Iran conducted such indirect talks under former presidents Hassan Rouhani and Ebrahim Raisi. Senior Iranian officials, including Supreme Leader Adviser Kamal Kharazi, have also recently expressed willingness to engage in indirect negotiations with the United States.[4] That Kharazi spoke to state media may suggest that Iranian officials are concerned about internal unrest over Iran’s economic situation and want to signal to the Iranian population that the regime is willing to take steps to secure economic relief.[5]

US Strategic Command reported on March 26 that Iran’s nuclear breakout time is “presumably less than one week.”[70] This is consistent with the Institute for Science and International Security’s assessment, citing International Atomic Energy Agency data from May 2024, that Iran’s breakout timeline for producing a nuclear weapon is about one week.[71]

At least some Iranian oil tankers en route to China have slowed or stopped, likely due to US “maximum pressure” sanctions that have targeted Iranian entities and vessels involved in the trade.[72] At least 11 sanctioned tankers carrying nearly 17 million barrels of oil in total now sit idle or are moving very slowly off the coast of Malaysia, according to a Bloomberg report on March 27.[73] Bloomberg also reported that the current backlog is the largest since August 2024. The slowdown highlights growing logistical challenges in Iran’s covert oil trade. The sanctions and the shipment slowdown damage the Iranian economy, which relies heavily on energy exports and revenue.

https://www.understandingwar.org/backgrounder/iran-update-march-27-2025