United Nations and European Union measures on Iran are reimposed — Key Events — Iran–Gulf

What happened

The Security Council does not adopt a resolution continuing sanctions relief and the previously terminated measures return — an arms embargo, an enrichment and reprocessing prohibition, ballistic-missile restrictions, travel bans and asset freezes. The Council of the European Union reimposes the corresponding EU restrictive measures on 29 September.

The legal architecture the whole Iranian economic file now sits inside, and it entered force five months before the war began. Iran, China and Russia have described the process as legally flawed.

Confidence: Moderate

When27 – 29 Sep 2025

KindSanctions · Diplomatic

Confidence: Moderate Sources: Congressional Research Service — Iran, the Gulf and the Strait of Hormuz · European Union institutional texts and Council conclusions · UN Security Council and Panel of Experts reporting ↗ Methodology Corrections

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Watch questions this event bears on

Standing analytical questions whose evidence runs through this event, each with its latest review. Derived from the Watch object, never restated here.

Diplomatic2026-10-04Has the IAEA regained meaningful verification access?
Unchanged
1. 2026-09-04: Baseline
2. 2026-09-13: Movement observed
3. 2026-09-20: No material change
4. 2026-09-27: No material change
5. 2026-10-04: No material change

Connected records

1 record that this event names, or that name it — every one an explicit reference in a published record, nothing inferred from subject matter.

Actors1

Actor records this event names.

European Union

Where this fits

This is one entry in the Iran–Gulf timeline. The full Key Events surface carries every dated turning point with its filters and its essential subset, and this event in place shows what came before and after it. How Vigil grades, dates and sources its claims is set out in the methodology.