- Western officials and experts have warned that Putin could use nukes in Ukraine if he gets desperate enough.
- Ukraine is in the midst of a blistering counteroffensive — rapidly recapturing territory.
- Retired Brig. Gen. Kevin Ryan told Insider he’s now “even more concerned about the possibility of nuclear weapons being used.”
Over the course of the nearly seven-month war in Ukraine, Western officials and Russian experts have consistently expressed concerns that Russian President Vladimir Putin could resort to using nuclear weapons if he gets desperate enough.
Retired US Army Brig. Gen. Kevin Ryan, a former defense attaché to Russia and senior fellow at Harvard’s Belfer Center for Science and International Affairs, said he’s even more worried about the potential for Putin to tap into Russia’s sizable nuclear arsenal now that Ukraine is rapidly regaining territory in a lightning counteroffensive that started less than a month ago.
“I have been thinking about the pressure Putin must be feeling to do something dramatic — which causes me to think again about nuclear triggers,” Ryan told Insider.
Ryan said that if the occupied territories of Donetsk and Luhansk ask for accession into Russia and are accepted, it would mean “the fighting that is currently going on in Ukraine will suddenly be ‘in Russia.'”
After failing to take Kyiv in the early days of the war, Russia shifted its focus to Ukraine’s eastern Donbas region, which is comprised of Donetsk and Luhansk. Much of the fighting in the war has occurred in the Donbas.
The Biden administration has warned that Russia could attempt to annex Donetsk and Luhansk via “sham referenda,” and were that to occur, there could be immediate ramifications if this occurred, Ryan said.
“For one, Putin could solve his military manpower problem because now all the conscripts (35+% of the force) can be used — since it’s no longer a war abroad,” he said.
“A second development will be that the red lines against fighting on Russian territory will be suddenly crossed,” he continued. “NATO weapons will be fighting and shooting inside Russia. And most importantly, the Russian state will be under direct attack. And as we know, that is a trigger for using nuclear weapons.”
Ryan, who as early as March warned of the potential for Putin to use a “small nuclear weapon,” or tactical nuke, in Ukraine, said he’s “even more concerned about the possibility of nuclear weapons being used now” than he was earlier.
“If we add the possibility that Russian forces might be losing hard won territory to Ukrainian forces at the same time, the pressure on Putin to do something dramatic will be enormous,” Ryan added.
The former general told Insider that he shared these thoughts with senior US officials.
‘The response would be overwhelming’
Lately, Russia has ceded significant gains to the Ukrainian armed forces. Ukrainian President Volodymyr Zelenskyy said that Ukraine’s forces have recaptured over 2,300 square miles in the east and south of the country so far this month — an astonishing amount of territory. Until recently, the conflict was widely characterized as a grinding war of attrition with little movement on either side.
Russia has seen substantial troop losses in Ukraine, which Moscow initially and wrongly assumed would be conquered in a matter of days. In August, the Pentagon said it estimated Russia had suffered as many as 80,000 casualties.
As Ukraine pushes Russia’s forces into retreat, Russian propagandists on state news channels who have generally offered full-throated support for the war are struggling to continue painting a rosy picture of what’s happening on the battlefield. Meanwhile, local lawmakers in Russia have been calling for Putin to be removed from power and charged with treason over the war.
In this context, there are serious concerns about what Putin might do if he feels pushed into a corner. Putin placed Russia’s nuclear deterrent forces on high alert in the immediate aftermath of the invasion, and he has been accused by Western officials of nuclear saber rattling. Top Ukrainian military officials — including Gen. Valeriy Zaluzhnyi, the commander-in-chief of the Armed Forces of Ukraine — wrote an op-ed last week that warned “limited” nuclear war with Russia could not be ruled out.
But not everyone is convinced that Putin would do something as drastic as using a nuclear weapon to achieve his aims in Ukraine.
“I don’t think that Putin would use tactical nukes in this situation — even if he’s losing, even if he lost everything in Ukraine,” Robert Orttung, a professor of international affairs at George Washington University, told Insider.
“He’s obviously going to threaten to use them,” Orttung said of Putin and Russia’s nuclear weapons.
But using such a weapon would “take the war to the next level,” and Putin would be “too afraid of what the response would be,” he said. “He knows the response would be overwhelming.”
“There’s a level of uncertainty there. But my best guess would be that he’s not going to use them,” Orttung said.
Russia’s use of a nuclear weapon in Ukraine could potentially trigger a military response from the US, which could spiral into direct conflict between Russia and NATO — a 30-member alliance. Multiple NATO members, including the US, have their own nuclear arsenals.
Even if Russia ended up losing in Ukraine or pulled its troops out, Putin could explain it away by blaming NATO and the US to save face, Orttung said, adding, “I think he could do that and still stay in power.”
‘A red line’
George Barros, a military analyst with the Institute for the Study of War, told Insider that the possibility of the Kremlin deciding to use a tactical nuclear weapon or another weapon of mass destruction (WMD) in Ukraine cannot be ruled out but he assesses “that risk is low.”
“The problem for the Russians is that in order to properly exploit the conditions that are created by a tactical nuclear weapon you need to have forces that are cohesive, coherent, and with a high level of morale,” Barros said, adding, “I don’t think the conventional Russian military at this point has the capability or the morale to be able to do that.”
Russian units deployed in Ukraine “clearly are not in the prime, tip-top shape that they should be in for such an operation,” Barros said, and militarily “it would not make sense” for Russia to use a WMD at this time.
Barros said that there are also “strategic level ramifications” for Russia to consider, including that utilizing a WMD in Ukraine would “constitute a red line” for Moscow’s Western adversaries.
“I’m sure behind closed doors the West promised the Kremlin that they would retaliate or respond in an appropriate fashion to such an unprecedented use of that kind of weapon,” Barros said.