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What happened next?Continue in this file · Iran since 1979: revolution, crises and wars with Israel and the United States
File · Iran since 1979: revolution, crises and wars with Israel and the United States

UN nuclear sanctions are reimposed

In late September 2025, UN sanctions predating the 2015 agreement were reimposed on Iran through the snapback mechanism.

France, Germany and the United Kingdom triggered the procedure on 28 August. Security Council attempts to prevent its completion failed. The UN factsheet dates reapplication to 27 September; press timelines place it on 28 September depending on the reference time zone.

The return of these measures marked the failure of another diplomatic phase after the June war. They added to national sanctions while remaining distinct from them.

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What happened before?Continue in this file · Iran since 1979: revolution, crises and wars with Israel and the United States