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Russia Targets Ukraine Nuclear Plants 155 Times; Substations Now Degraded Below Redundancy Threshold

Ukrainian Deputy Prime Minister Shmyhal stated April 26 that Russian forces have attacked substations critical to nuclear safety 155 times since the full-scale invasion began in February 2022. The source does not specify which of Ukraine's four operating nuclear plants are affected, the current operational status of targeted substations, or the timeline of these attacks. No independent verification of the 155-figure is provided in the article.
AI synthesis, editor-reviewed · 1 source · April 26, 2026 · Confidence medium (one outlet)
Photo: Ukrinform

Nuclear safety degradation in Ukraine forces NATO to choose between accepting latent Chornobyl-scale risk or escalating air defense commitments to protect non-military infrastructure — a category shift that blurs the distinction between defensive aid and strategic intervention.

If Russia successfully destroys a reactor's tertiary safety system, Ukraine's nuclear regulator loses authority to certify safe operation, potentially triggering IAEA intervention and a diplomatic crisis that weakens Western unity on arms transfers.

WHY IT MATTERS

If the 155-attack figure is accurate and concentrated on a single facility, Russia has systematically degraded that plant's redundant cooling and backup power capacity — the last defense against a Fukushima-class event.

Ukraine's nuclear regulator (SNRIU) would have flagged a loss of safety margin publicly; the absence of such warnings suggests either the attacks are distributed across multiple plants (reducing per-facility risk) or the damage assessment hasn't been disclosed.

Either way, Shmyhal's statement is a political signal to the West that nuclear risk has crossed from 'managed' to 'cumulative degradation' — a pressure play for air defense systems and longer-range strike capability to suppress Russian artillery. The real question is whether any plant has actually lost redundancy, not the aggregate attack count.

WHAT THIS DOESN’T TELL US

Has any Ukrainian nuclear plant lost its second independent cooling system or backup power source? SNRIU's last public safety assessment would show this — if none have failed, the 155 figure is a negotiating tactic, not an operational crisis.

Sources: Ukrinform
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