Will Putin go nuclear? A timeline of expert comments

By Susan D’Agostino | April 27, 2022

An artist's rendition of Russian President Vladimir Putin's nuclear posture. Photo credit: kremlin.ru, changes made, CC BY 3.0. Illustration by Sarah Starkey. Credit for photo of Putin: kremlin.ru, changes made, CC BY 3.0.

“The risk of global nuclear war has practically disappeared,” Mikhail Gorbachev, the last leader of the Soviet Union, said in his 1991 Nobel Prize acceptance speech, even though Russia and the United States retained their massive nuclear arsenals.

Three decades later, nine countries are members of the nuclear club. Even so, many were reassured last summer when Russian President Vladimir Putin and US President Joe Biden during a Geneva summit reiterated the Gorbachev-Regan statement that “a nuclear war cannot be won and must never be fought.”

But ever since Russia’s late-February invasion of Ukraine, political leaders, nuclear arms control experts, and world citizens have tried to answer some version of the question: Will Putin use nuclear weapons in his war in Ukraine?

The utterances by individuals of note listed below might have been responses to this question. These statements, arranged chronologically, offer a still-unfolding existential narrative on whether nuclear war may or may not be imminent.

Author’s note: Dates refer either to the date the statement was uttered or the date it was published.

Will Putin deploy nuclear weapons in his war with Ukraine?

  • Russian President Vladimir Putin during his address on launching a "special military operation" in Ukraine on February 24, 2022. (Credit: www.kremlin.ru | CC BY 3.0)

    February 24, 2022
    President Vladimir Putin

    “No matter who tries to stand in our way or all the more so create threats for our country and our people, they must know that Russia will respond immediately, and the consequences will be such as you have never seen in your entire history,” President Vladimir Putin said in a statement widely interpreted as a nuclear threat.

  • President Joe Biden announces sanctions after Russia moves troops to Ukraine.
    Credit: White House

    February 28, 2022
    President Biden

    “No,” President Biden said in response to a question about whether US citizens should be concerned about the start of a nuclear war.

  • Press Secretary Jen Psaki holds a press briefing, Monday February 4, 2022 (Official White House Photo by Cameron Smith)

    February 28, 2022
    Jen Psaki

    "At this time, we see no reason to change our own [nuclear] alert levels," White House press secretary Jen Psaki said.

  • A 2020 test of a ground-based intercontinental ballistic missile from the Plesetsk facility in northwestern Russia. Credit: Russian Defense Ministry Press Service /AP.

    March 1, 2022
    Olga Oliker

    "I think it's very unlikely that Moscow is just going to lob a nuclear weapon at something," Olga Oliker with the International Crisis Group said. "Obviously it's been a week when a lot of people's assumptions have been challenged, but I'll cling to this one for a while."

  • Destruction from the war in the city of Bucha in the Kyiv region.

    March 7, 2022
    Lynn Rusten

    “It seems unimaginable that Russia would use nuclear weapons in Ukraine,” Lynn Rusten, a former White House staffer now at the Nuclear Threat Initiative, said. “There would be no reason for it.” 

  • March 7, 2022
    Pavel Podvig

    “There is always the danger of inadvertent escalation,” Pavel Podvig, senior researcher at the UN Institute for Disarmament Research, said.

  • UN Secretary General António Guterres briefs journalists on Ukraine on on Mar 14, 2022. (Credit: United Nations YouTube)

    March 14, 2022
    Secretary General António Guterres

    “The prospect of nuclear conflict, once unthinkable, is now back within the realm of possibility,” UN Secretary General António Guterres said.

  • Map of Northern America showing the full range of the nuclear missiles under construction in Cuba, used during the secret meetings on the Cuban crisis. (Credit: CIA)

    March 15, 2022
    Herb Lin

    “From a risk perspective, I believe we could be at about five or 10 percent of the Cuban Missile Crisis risk level,” Herb Lin, a security scholar at Stanford and the Hoover Instititution, said

  • March 15, 2022
    Gen. Scott Berrier

    “As this war and its consequences slowly weaken Russian conventional strength, Russia likely will increasingly rely on its nuclear deterrent to signal the West and project strength to its internal and external audiences,” Lt. Gen. Scott Berrier, director of the Defense Intelligence Agency, wrote in a report.

  • March 15, 2022
    Gen. (Ret.) Wesley Clark

    “I think we have to start from the presumption that he would welcome the opportunity to use nuclear weapons," Gen. (Ret.) Wesley Clark said. "He wants to show his determination. He wants to intimidate the West. He thinks he has a nuclear advantage.”

  • Assistant Secretary of State Rose Gottemoeller delivers U.S. opening statement at Conference on Disarmament in Geneva, Switzerland on January 24, 2012.

    March 17, 2022
    Rose Gottemoeller

    "The Russians have told us that they have made no changes thus far in the operational status of their missiles per se, and I don't have any reason not to believe that,” Rose Gottemoeller, former deputy secretary general of NATO and undersecretary for arms control in the Obama administration, said.

  • Armored reconnaissance and patrol vehicle recaptured in Luhansk Oblast from Russian troops by the State Border Guard Service and the Armed Forces of Ukraine. (Credit: dpsu.gov.ua | CC BY 4.0)

    March 21, 2022
    Ulrich Kühn

    “The chances [of Russia using a nuclear weapon] are low but rising,” said Ulrich Kühn, a nuclear expert at the University of Hamburg and the Carnegie Endowment for International Peace told the New York Times. “The war is not going well for the Russians, and the pressure from the West is increasing.”

  • Storage building in Kyiv after Russian shelling on March 17, 2022. (Credit: dsns.gov.ua | CC BY 4.0)

    March 23, 2022
    Graham Allison

    “[The probability that war in Ukraine will devolve into nuclear war is] less than one in 100—and in my best estimate, closer to one in 1,000,” Harvard political scientist Graham Allison said.

  • March 23, 2022
    Michael Dobbs

    “The risks of a direct confrontation between US and Russian forces may be fairly low at present,” Michael Dobbs, author of One Minute to Midnight, an account of the Cuban missile crisis, said. “But if you multiply that by X months or X years and the number of things that could go wrong, they turn out to be similar mathematically [to the one-in-three nuclear-war odds that President John F. Kennedy had calculated during the Cuban Missile Crisis].”

  • National Security Advisor Jake Sullivan speaks at a press briefing on March 22, 2022 at the White House.

    March 25, 2022
    US National Security Adviser Jake Sullivan

    “[Potential nuclear weapon use in the current war] is something we do have to be concerned about,” US National Security Adviser Jake Sullivan said.

  • Dmitry Medvedev speaks at a meeting of the Security Council of the Russian Federation dedicated to the recognition of the DNR and LNR. (Credit: Администрация Президента России | CC BY 4.0)

    March 26, 2022
    Dmitry Medvedev

    “We have a special document on nuclear deterrence. This document clearly indicates the grounds on which the Russian Federation is entitled to use nuclear weapons. … [This includes] when an act of aggression is committed against Russia and its allies, which jeopardized the existence of the country itself, even without the use of nuclear weapons, that is, with the use of conventional weapons,” Dmitry Medvedev, former Russian president and deputy chairman of the country’s security council, said.

  • March 26, 2022
    Shannon Bugos

    “The likelihood of Putin actually using nuclear weapons remains low, but the threat is still there,” Shannon Bugos, a senior policy analyst at the Arms Control Association, said.

  • Vladimir Putin held talks with President of Belarus Alexander Lukashenko at Vostochny Cosmodrome. (Credit: www.kremlin.ru | CC BY 3.0)

    March 28, 2022
    Dmitry Peskov

    “No one is thinking about using, about—even about idea of using a nuclear weapon, Kremlin Spokesman Dmitry Peskov said.

  • Sarah Bidgood discusses nuclear weapons and the war in Ukraine during a TEDxMidAtlantic episode. (Credit: TEDxMidAtlanticSalon on YouTube)

    March 29, 2022
    Sarah Bidgood

    “… Russia could introduce nuclear weapons into a conflict when it felt it had run out of conventional options and was facing an existential threat,” Sarah Bidgood, director of the Eurasia program at James Martin Center for Nonproliferation Studies, said. “It’s hard to say, because we don’t have a good sense for what all of Putin’s red lines are here, or what he regards as an existential threat.”

  • House on Bohatyrska Street in Ukraine after shelling on March 14, 2022. (Credit: dsns.gov.ua | CC BY 4.0)

    March 31, 2022
    Senior US defense official

    “No indications at this time that they’re preparing to use [nuclear] weapons,” a senior US defense official, speaking on the condition of anonymity, said.  

  • April 5, 2022
    Hans Kristensen

    “None of that’s evident,” Hans Kristensen, director of the Nuclear Information Project at the Federation of American Scientists, said of Russia preparing for nuclear war.

  • Anti-war protesters in central London on March 6, 2022. (Credit: Alisdare Hickson from Woolwich, United Kingdom | CC BY-SA 2.0)

    April 5, 2022
    Dmitry Polyanskiy

    “Russia firmly adheres to the principle that there can be no winners in a nuclear war, and it must not be unleashed," Russia's First Deputy Permanent Representative to the United Nations Dmitry Polyanskiy said.

  • Adam Mount

    April 11, 2022
    Adam Mount

    “The risk of Russia using a nuclear weapon in Ukraine is very low, and the public concern over nuclear use has far outstripped the nuclear risk,” Adam Mount, director of the Defense Posture Project at the Federation of American Scientists, said. “In some ways, it’s the threat that’s meant to do more work than the weapon itself.”

  • President Putin during a meeting with permanent members of the Security Council on April 7, 2022. (Credit: www.kremlin.ru | CC BY 3.0)

    April 13, 2022
    Robert Gates

    “I think the odds of him using chemical or nuclear weapons is at this point pretty low,” Former US Secretary of Defense Robert Gates said.

  • William Joseph Burns ceremonially sworn in as CIA director by Kamala Harris on March 23, 2021.

    April 14, 2022
    CIA Director William Burns

    “[G]iven the potential desperation of President Putin and the Russian leadership, given the setbacks that they’ve faced so far militarily, none of us can take lightly the threat posed by a potential resort to tactical nuclear weapons or low-yield nuclear weapons,” CIA Director William Burns said. “While we’ve seen some rhetorical posturing on the part of the Kremlin, about moving to higher nuclear alert levels, so far we haven’t seen a lot of practical evidence of the kind of deployments or military dispositions that would reinforce that concern.”

  • Ukraine's President Zelensky speaks to BBC on April 14, 2022.

    April 16, 2022
    Ukrainian President Volodymyr Zelensky

    “We shouldn’t wait for the moment when Russia decides to use nuclear weapons​.​ … We must prepare for that​,” Ukrainian President Volodymyr Zelensky said.

  • April 20, 2022
    Scott Sagan

    “Putin could order the Russian military to drop a single nuclear bomb on a Ukrainian city to try to coerce the Zelensky government into immediately surrendering. This frightening scenario is not fanciful. It is, after all, effectively what the United States did to Japan in 1945,” Scott Sagan, senior fellow at Stanford’s Spogli Institute for International Studies, said.

  • The new heavy Sarmat intercontinental ballistic missile underwent an ejection test at the Plesetsk state test cosmodrome in March 2018. (Credit: Mil.ru | CC BY 4.0)

    April 20, 2022
    President Vladimir Putin

    “[The new Sarmat intercontinental ballistic missile capable of carrying nuclear warheads] will force all who are trying to threaten our country in the heat of frenzied, aggressive rhetoric to think twice,” President Vladimir Putin said.

  • Siegfried Hecker in Seoul in September 2018
    Siegfried Hecker

    April 21, 2022
    Siegfried Hecker

    “I don’t really know [whether Putin is going to use nuclear weapons in Ukraine], although the chances are certainly non-zero,” Siegfried Hecker, former director of Los Alamos National Laboratory and one of the world’s foremost security experts, said.

  • Ukrainian civilians and soldiers take shelter under a bridge in Kyiv. March 5, 2022. Credit: Міністерство внутрішніх справ України. Accessed via Wikimedia Commons. CC BY 4.0.
    Ukrainian civilians and soldiers take shelter under a bridge in Kyiv. March 5, 2022. Credit: Міністерство внутрішніх справ України. Accessed via Wikimedia Commons. CC BY 4.0.

    April 23, 2022
    Daryl Kimball

    “When nuclear deterrence fails, it fails catastrophically,” Daryl Kimball, director of the Arms Control Association in Washington, DC, said.

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John Bruce Davies, Ph.D.

All the above arguments against this conflict becoming nuclear are based on the assumption that Putin is a rational being. The same assumption was applied to Hitler prior to WW II. Mathematical analysis based on applying chaos theory to the history of major recent conflicts indicate that there is a serious risk of WW III and massive loss of human life arising from escalation of this Russian invasion. As someone whose first memories are of German flares and bombs dropping on a small village 8 miles from their target of Cardiff docks in Wales, I beg all with any influence… Read more »

giorgio sericeno
giorgio sericeno
1 year ago

Unfortunately, Boris Johnson and USA keep provoking Putin. The threat to use UK weapons in Russia is inexcusable. People who want to escalate the conflict the compare Putin to Hitler. Ok, if this comparison stands, we all agree that a desperate Hitler would use atomic bombs before killing himself, what about a desperate Putin?
BJ. was very wrong on COVID, he has demonstrated poor judgement, now he can cause a mass extinction

1 year ago

I can only apologize on behalf of my fellow, sensible Brits to Europe and the world that he is our PM. I, at least, along with many others have a clear conscience in that I didn’t vote for his party at our general election in December 2019.

Donald Maclean
Donald Maclean
1 year ago

If he loses, will he feel betrayed and abandoned by a world unworthy of him? Will he feel weakened and shamed on a world scene? Loss of Face! Narcissus does not tolerate dagger in heart, no way, not like some people. Dagger in heart of Narcissus is betrayal! If he goes down, will that mean gross loss of face? Exactly what will that mean to him? Will he consider taking a generation of unworthy ones with him?

If he wins, he’ll do a victory lap, whatever that means to him, and to those who are in awe of him.

1 year ago

our hot headed politicians in DC are pushing Putin to press the RED BUTTON. NATO wants the complete submission of Russia. it is the start of WW3!

thomas brayton marvell
thomas brayton marvell
1 year ago

Russia is in fact subtlety threatening to use nukes. It is likely to use tactical nukes if 1) it is losing the war, and 2) Ukraine escalates its attacks on Russian territory. Ukraine and the West probably will not moderate their actions in the face of this threat because that would encourage other countries with nukes to “blackmail” adversaries by threatening to use nukes. Thus, Russia is quite likely to use nukes. If it does, the West’s reaction is uncertain, but it is likely to be very strong in order to discourage further use of nukes by Russia or others.… Read more »

Jakub Kokocinski
Jakub Kokocinski
1 year ago

Interesting to see the tone shift the farther you go down the timeline. I do believe Russia is becoming more desperate in attempts to show the west its capabilities and strength as a country. I fear the most likely outcome would be the utilization of a smaller more tactical nuclear strike on a Ukrainian city just as Scott Sagan said.

Eugene Dominguez
Eugene Dominguez
1 year ago

These comments are very valuable
It appears that if wmds are deployed they would be tactical and in the strategic context like that of Hiroshima and Nagasaki.

Vidvuds Beldavs
1 year ago

The pattern of Russian actions suggests likelihood of use of a tactical nuke using a hypersonic missile. Russia has used its limited supply of hypersonic missiles more than once to attack targets in Ukraine. Why would they do this? A highly logical target would be to hit Yaroviv with a tactical nuke well under 0.5 kiloton yield. Russia has hit this base with a conventional warhead but not a hypersonic missile. https://www.rferl.org/a/russia-missiles-base-ukrainian-border/31750540.htm. This is the base thru which Western weapons flow and Ukrainians have been trained. It is close to the border of Poland. A tactical nuke strike there could significantly damage the facility but more… Read more »

John Bowman
John Bowman
1 year ago

Good article showing a growing concern on the use of nuclear weapons. Here is a plan to stop this threat. Any feedback would be greatly appreciated.

Jennifer Reitz
1 year ago

Putin is holding the world hostage with the ongoing fear that he might use nuclear weapons. That makes all of us his slaves, his bitches, his dogs: we dare not fully oppose the violent conquest of a sovereign nation out of fear of this Bully In The International Playground. If Putin succeeds, he will continue. If this invasion of Ukraine is not stopped, firmly and decisively, the door to ongoing conquest opens – and not just by Russia. Putin is testing whether or not threatening nukes is the secret to absolute power over the world, the key to open, unopposed… Read more »

William lloyd Desmith
William lloyd Desmith
1 year ago

I strongly believe Putin will either go nuclear, chemical, or biological. However, I do not think he’ll launch on a nato country. It will be on Ukraine soil. And I do not see nato launching in retaliation but will lead to nato troops in Ukraine. Or a no fly zone


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