A Ukraine Invasion Could Go Nuclear: 15 Reactors Would Be In War Zone – Forbes
The Zaporizhzhia Nuclear Power Plant is at risk.
As Russias buildup on the Ukrainian border continues, few observers note that an invasion of Ukraine could put nuclear reactors on the front line of military conflict. The world is underestimating the risk that full-scale, no-holds-barred conventional warfare could spark a catastrophic reactor failure, causing an unprecedented regional nuclear emergency.
The threat is real. Ukraine is heavily dependent upon nuclear power, maintaining four nuclear power plants and stewardship of the shattered nuclear site at Chernobyl. In a major war, all 15 reactors at Ukraines nuclear power facilities would be at risk, but even a desultory Russian incursion into eastern Ukraine is likely to expose at least six active reactors to the uncertainty of a ground combat environment.
The world has little experience with reactors in a war zone. Since humanity first harnessed the atom, the world has only experienced two major accidentsChernobyland JapansFukushima disaster. A Russian invasion, coupled with an extended conventional war throughout Ukraine, could generate multiple International Atomic Energy Agency Level 7 accidents in a matter of days. Such a contingency would induce a massive refugee exodus and could render much of Ukraine uninhabitable for decades.
Turning the Ukraine into a dystopian landscape, pockmarked by radioactive exclusion zones, would be an extreme method to obtain the defensive zone Russian President Vladimir Putin seems to want. Managing a massive Western-focused migratory crisis and environmental cleanup would absorb Europe for years. The work would distract European leaders and empower nativist governments that tend to be aligned with Russias baser interests, giving an overextended Russia breathing room as the country teeters on the brink of technological, demographic, and financial exhaustion.
Put bluntly, the integrity of Ukrainian nuclear reactors is a strategic matter, critical for both NATO and non-NATO countries alike. Causing a severe radiological accident for strategic purposes is unacceptable. A deliberate aggravation of an emerging nuclear catastrophepreventing mitigation measures or allowing reactors to deliberately melt down and potentially contaminate wide portions of Europewould simply be nuclear warfare without bombs.
Such a scenario cant be ruled out. Russia has repeatedly used Ukraine to test out concepts for Gray Zone warfare, where an attacker dances just beyond the threshold of open conflict. Given Russias apparent interest in radiation-spewing nuclear-powered cruise missiles, robotic undersea bombs with a radiological fallout-oriented payload, destructive anti-satellite tests and other nihilistic, world-harming weapons, Russias ongoing dalliance with Gray Zone warfare in Ukraine may, for the rest of Europe, become a real matter of estimating radiological grays, or, in other words, estimating the amount of ionizing radiation absorbed by humans.
UkrainesZaporizhzhia nuclear power plantis a particular risk. It is the second-largest nuclear power plant in Europe (essentially tied with a French reactor complex near Calais), and one of the 10 largest nuclear power plants in the world. The site has little protection, and the sixVVER-1000pressurized water reactors could easily be embroiled in any Russian invasion.
If war comes, the fight will be close by. The Zaporizhzhia nuclear power plant is located only 120 miles from the current front line in theDonbass regionand is on the hard-to-defend east bank of the Dnieper River. Aside from the geographical hazards, the power plant provides about a quarter of Ukraines total electrical power. Given the importance of the electricity, plant managers will be reluctant to shut it down, securing the reactors only at the very last possible second. Ukraines desperate need for energy only compounds the opportunities for an accident.
Outside of direct battle damage, cyber and other Russian-sourced grey zone mischief could make the plant unmanageable even before the battle arrives at the reactor gates.
Though unlikely, direct bombardment could cause serious damage to reactor containment structures. While the reactor structures themselves are strong, warfare at the plant could kill key personnel and destroy command-and-control structures, monitoring sensors or critical reactor-cooling infrastructure. And, as an operating power plant, the reactors are not the only threat. Dangerous spent fuel rods are sitting in vulnerable cooling ponds, while older fuel sits in the sites167 dry spent fuel assemblies.
If the reactors suffer any operational anomalies, crisis management is not going to happen. Support infrastructure needed for safe reactor management will collapse during conflict. Plant security forces will disappear, operators will flee, and, if an accident occurs, mitigating measures will be impossible.
It seems unlikely that Russia has mobilized trained reactor operators and prepared reactor crisis-management teams to take over any liberated power plants. The heroic measures that kept the Chernobyl nuclear accident and Japans Fukushima nuclear disaster from becoming far more damaging events just will not happen in a war zone.
Again, the risks are very high. The world has never dealt with an unmanaged meltdown at a large nuclear power plant. The very real prospect of an extended and unmitigated incident at a six-reactor powerplant in a war zone is worth urgent and immediate consultations throughout Europe and NATO.
Nuclear disasters are rarely localized events. When Chernobyl occurred, Putin was enjoying a KGB posting in East Germany. He certainly must recall that the accident released a stew of dangerous radioactive contaminants into the air, spreading contaminationand fearacross Europe. One dangerous contaminant, caesium-137, spread thousands of miles, though most fell out of the atmospherewithin 200 miles of the stricken plant, creating large no-go zones in areas of Russia, Ukraine and Belarus.
The same would be true of Zaporizhzhia. If the reactors are damaged in late December or early January, the prevailing winds are from Siberia, and weather patterns can be expected to push dangerous levels of caesium-137 and other contaminants directly to the west. The fallout will contaminate Ukraines key waterway, Europes breadbasket, and potentiallydepending on the contamination types and weather patternscompromising drinking water supplies across Europe.Of course, nature is a fickle partner, and, if Putins invaders spark an uncontrollable meltdown, the winter winds will eventually change, pushing radiation over the Donbass region and into Russia.
Tactically, radioactive plumes would make nearly every civilian nearby flee, degrading Ukrainian defensive efforts. The fallout could even force the three reactors at the South Ukraine Nuclear Power Plantbarely 160 miles downwindto shut down, further weakening Ukraines electricity supply and its defenses.
The world has never experienced war that threatens active nuclear power infrastructure, and world leaders may be underestimating the peril conventional warfare presents to these powerful and perilous assets.
On the other hand, heedless purveyors of gray zone warfare may be underestimating the risk themselves, all too eager to determine just how degraded nuclear infrastructure might serve as a less risky surrogate for nuclear conflict.
To them, its not nuclear war, but just a series of unfortunate nuclear accidents.
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A Ukraine Invasion Could Go Nuclear: 15 Reactors Would Be In War Zone - Forbes
- Ukraine Peace Talks End on Positive Note as Zelensky Teases Future Meeting - The New York Times - January 26th, 2026 [January 26th, 2026]
- Kremlin sticks to demand that Ukraine cede all of Donbas in talks, TASS reports - Reuters - January 26th, 2026 [January 26th, 2026]
- Ukraine war latest: US insists Trump not giving up on peace ahead of Sunday talks - The Independent - January 26th, 2026 [January 26th, 2026]
- Talks With US and Ukraine in Abu Dhabi Were Constructive but Major Challenges Remain, Kremlin Says - Military.com - January 26th, 2026 [January 26th, 2026]
- Russia Cuts Its Disability Count As War Against Ukraine Wounds Hundreds of Thousands - Radio Free Europe/Radio Liberty - January 26th, 2026 [January 26th, 2026]
- Bloc of Germany's Merz sceptical over prospects of Ukraine joining EU - - January 26th, 2026 [January 26th, 2026]
- Heres the latest on the first trilateral talks between Ukraine, Russia and US as negotiators set plans for future meeting - CNN - January 26th, 2026 [January 26th, 2026]
- Russia Says Talks to End War in Ukraine Will Continue - The New York Times - January 26th, 2026 [January 26th, 2026]
- Peace talks on Russia-Ukraine war end as fighting rages - BBC - January 26th, 2026 [January 26th, 2026]
- Talks with US and Ukraine in Abu Dhabi were constructive but major challenges remain, Kremlin says - ABC News - January 26th, 2026 [January 26th, 2026]
- Hungarys Orbn accuses Ukraine of election interference and summons ambassador - AP News - January 26th, 2026 [January 26th, 2026]
- Ukraine hails first trilateral talks with Russia and US as constructive as Washington says mood very upbeat - CNN - January 26th, 2026 [January 26th, 2026]
- Envoys travel the globe to push a US plan for ending Russias war in Ukraine - AP News - January 26th, 2026 [January 26th, 2026]
- January 23, 2026 Trumps NATO remarks; US, Russia and Ukraine war talks - CNN - January 26th, 2026 [January 26th, 2026]
- Kremlin Reaffirms Demand for Ukraine to Cede All of Donbas After Abu Dhabi Talks - UNITED24 Media - January 26th, 2026 [January 26th, 2026]
- Official: Talks with U.S. and Ukraine in Abu Dhabi were constructive but major challenges remain - post-gazette.com - January 26th, 2026 [January 26th, 2026]
- Russian Forces Are Liquidating the Catholic Church in Occupied Ukraine - National Catholic Register - January 26th, 2026 [January 26th, 2026]
- Hungary's Orbn accuses Ukraine of election interference and summons ambassador - WRAL - January 26th, 2026 [January 26th, 2026]
- Signs of progress in Russia-Ukraine peace talks after trilateral negotiations - Washington Times - January 26th, 2026 [January 26th, 2026]
- First Trilateral Ukraine Peace Talks Ended Exactly As Expected With Russia Demanding More - HuffPost UK - January 26th, 2026 [January 26th, 2026]
- New Photos Show Evolution Of 'Hedgehog Armor' In Ukraine - Radio Free Europe/Radio Liberty - January 26th, 2026 [January 26th, 2026]
- Talks with U.S. and Ukraine in Abu Dhabi were constructive but major challenges remain, Kremlin says - latimes.com - January 26th, 2026 [January 26th, 2026]
- Ukraine Becomes First to Feed Troops With AI Robotic Kitchens on the Front Line - UNITED24 Media - January 26th, 2026 [January 26th, 2026]
- Zelensky reveals US security deal for Ukraine is 100% ready to be signed as Kremlin gives update on peace talks - The Sun - January 26th, 2026 [January 26th, 2026]
- Ukraine war latest: Millions of Ukrainians without heating in -13C after Russian attack; second day of peace talks end - Sky News - January 26th, 2026 [January 26th, 2026]
- Ukraine is not losing the war, but it cannot fight forever - Michael McFaul | Substack - January 26th, 2026 [January 26th, 2026]
- Ukraine: Zelensky upbeat on US deal but Davos showed the US president to be an unreliable ally - The Conversation - January 26th, 2026 [January 26th, 2026]
- Pope Leo appeals for peace in Ukraine and in all war-torn regions - Vatican News - January 26th, 2026 [January 26th, 2026]
- Hungary's Orbn accuses Ukraine of election interference and summons ambassador - ABC News - January 26th, 2026 [January 26th, 2026]
- Ukraine war: High stakes but low expectations for Ukraine talks with Russia and US - BBC - January 26th, 2026 [January 26th, 2026]
- EU executive weighs idea of quick, but limited membership for Ukraine - Reuters - January 16th, 2026 [January 16th, 2026]
- Ukraine killed 27 Russian soldiers for every loss as it regained Kupiansk - The Independent - January 16th, 2026 [January 16th, 2026]
- Russias full-scale invasion of Ukraine outlasts the Soviet fight with the Nazis heres what history tells us about Kyivs prospects - The Conversation - January 16th, 2026 [January 16th, 2026]
- Russia Knocks Out the Heat in Ukraine - The New York Times - January 16th, 2026 [January 16th, 2026]
- Ukraine war latest: Zelensky says Trumps peace agreement could be signed at Davos - The Independent - January 16th, 2026 [January 16th, 2026]
- Macron said that Ukraine now gets 'two-thirds' of its intelligence from France, not the US - Business Insider - January 16th, 2026 [January 16th, 2026]
- Moscow agrees with Trump that Ukraine is holding up a peace deal, the Kremlin says - AP News - January 16th, 2026 [January 16th, 2026]
- Ukraine targets the ships Russia uses to beat US sanctions on its oil - Al Jazeera - January 16th, 2026 [January 16th, 2026]
- NATO Secretary General: discussed Russia's attacks and energy problems with Ukraine's Zelenskiy - Reuters - January 16th, 2026 [January 16th, 2026]
- Russia's 'massive' losses in Ukraine have it heading toward a breaking point, NATO's top official says - Business Insider - January 16th, 2026 [January 16th, 2026]
- UK and Ukraine strengthen ties under landmark partnership as 20 million accelerated to support energy infrastructure - GOV.UK - January 16th, 2026 [January 16th, 2026]
- The war in Israel is in a lull, but Jewish soldiers are still fighting in Ukraine - The Jerusalem Post - January 16th, 2026 [January 16th, 2026]
- Czech Republic to Supply Ukraine with Combat Jets for Drone Defense - Global Banking & Finance Review - January 16th, 2026 [January 16th, 2026]
- Ukraine war latest updates: Ukrainians reject trading Donbas to Russia (4) - The Kyiv Independent - January 16th, 2026 [January 16th, 2026]
- EU executive weighs idea of quick, but limited membership for Ukraine - Global Banking & Finance Review - January 16th, 2026 [January 16th, 2026]
- Ukraine's Security Talks with US: Key Insights and Updates - Global Banking & Finance Review - January 16th, 2026 [January 16th, 2026]
- Ukraine teaching Britain how to tackle drone crisis facing the countrys prisons - The US Sun - January 16th, 2026 [January 16th, 2026]
- Russia rings in new year with mass drone strike on Ukraine, Putin says he's confident of victory - NBC News - January 4th, 2026 [January 4th, 2026]
- Look ahead to 2026: Prospects for peace in Ukraine - CBS News - January 4th, 2026 [January 4th, 2026]
- A ceasefire in Ukraine would be fraught with danger for the whole of Europe - The Independent - January 4th, 2026 [January 4th, 2026]
- The British military expected to see more of Russia's 'prestige equipment,' like T-14 tanks, fighting in Ukraine, officer says - Business Insider - January 4th, 2026 [January 4th, 2026]
- Why Security Guarantees Are So Crucial, and Thorny, for Ukraine - The New York Times - January 4th, 2026 [January 4th, 2026]
- Brooks and Capehart on chances of Ukraine-Russia talks leading to peace in 2026 - PBS - January 4th, 2026 [January 4th, 2026]
- Trump says he's 'not thrilled' with Putin over war in Ukraine - Reuters - January 4th, 2026 [January 4th, 2026]
- Why a Nuclear Plant Is a Big Sticking Point in the Ukraine Peace Plan - The New York Times - January 4th, 2026 [January 4th, 2026]
- Over 400,000 Russians killed, wounded for 0.8 percent of Ukraine in 2025 - Al Jazeera - January 4th, 2026 [January 4th, 2026]
- New year, new deal? Why peace still feels elusive for Ukraine - The Guardian - January 4th, 2026 [January 4th, 2026]
- OPINION: Ukraine: The Case For Optimism (Part I) - Kyiv Post - January 4th, 2026 [January 4th, 2026]
- Starmer expects major progress toward Ukraine peace in 2026 | Daily Sabah - Daily Sabah - January 4th, 2026 [January 4th, 2026]
- Ukraine war briefing: Russia makes biggest battleground gains since first year of war, analysis shows - The Guardian - January 4th, 2026 [January 4th, 2026]
- Drone strikes kills 2 in Russian border regions ahead of Ukraine peace talks - AP News - January 4th, 2026 [January 4th, 2026]
- Russia accuses Ukraine of killing 27 people in New Year attack in occupied Kherson region - BBC - January 4th, 2026 [January 4th, 2026]
- The Separation: Inside the Unraveling U.S.-Ukraine Partnership - The New York Times - January 4th, 2026 [January 4th, 2026]
- Trump not thrilled with Putin, says too many people dying in Ukraine war - South China Morning Post - January 4th, 2026 [January 4th, 2026]
- Russia reports drone interceptions near capital as Ukraine sanctions target Moscows war industry - TRT World - January 4th, 2026 [January 4th, 2026]
- Poland reiterates it will not deploy its troops to Ukraine - Ukrinform - January 4th, 2026 [January 4th, 2026]
- How Russia and Ukraine Are Fighting to Shape Trumps View of the War - The New York Times - January 4th, 2026 [January 4th, 2026]
- Ukraine Reacts to US Action in Venezuela, Calls for Democracy and Rule of Law - UNITED24 Media - January 4th, 2026 [January 4th, 2026]
- Russia's losses in Ukraine rise faster than ever as US pushes for peace deal - BBC - January 4th, 2026 [January 4th, 2026]
- Ukraine-Russia war latest: Moscow and Kyiv exchange drone strikes on energy grids in New Year attacks - The Independent - January 4th, 2026 [January 4th, 2026]
- Ukraines Ambassador was absolutely right to respond to Speaker Okamuras infuriating insults toward Ukraine and its leadershipand he did so... - January 4th, 2026 [January 4th, 2026]
- Ukraine Trains Around 100 New Pilots in 2025 to Boost Military Workforce - Aviation A2Z - January 4th, 2026 [January 4th, 2026]
- US offers Ukraine a 15-year security guarantee as part of peace plan, Zelenskyy says - AP News - January 4th, 2026 [January 4th, 2026]
- Ukraine imposes new sanctions targeting Russian military-industrial sector - AzerNews - January 4th, 2026 [January 4th, 2026]
- Russia's war casualty toll in Ukraine up by 900 over past day - Ukrinform - January 4th, 2026 [January 4th, 2026]
- Russia Threatens to Toughen Its Stance on Ending the War in Ukraine - The New York Times - January 4th, 2026 [January 4th, 2026]
- Ukraine's own 'Dancing with the Stars' is back on for a special episode with wartime heroes - NBC News - December 25th, 2025 [December 25th, 2025]
- U.S. and Ukraine reach consensus on key issues aimed at ending the war - NPR - December 25th, 2025 [December 25th, 2025]
- Most Russians expect the war with Ukraine to end in 2026, as its economy slows - Business Insider - December 25th, 2025 [December 25th, 2025]
- Zelensky Open to Pulling Back Troops in Eastern Ukraine to Reach Peace Deal With Russia - The New York Times - December 25th, 2025 [December 25th, 2025]