Russian penal military units during the Russian invasion of Ukraine

• 1. Introduction

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  Russia's penal military recruitment program drew between 140,000 and 180,000 convicts into the fight in Ukraine, according to Ukraine's Foreign Intelligence Service. This estimate, if accurate, made the recruitment of prisoners one of the largest single manpower decisions of the entire war. It also raised fundamental questions about how Russia managed the pressures of that war internally. How did it avoid the political cost of widespread conscription? Who ran the recruitment, and how were these men used once they reached the front? And what did Russian society face when those who survived came home?

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• 2. Avoiding Mobilization

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  The United Kingdom's Ministry of Defense named the driving force plainly. Russia's prison recruitment, the Ministry said, was part of a "broader, intense effort" to bolster troop numbers. The explicit goal was to avoid mandatory mobilisation that would be "very unpopular with the Russian public." Calling up civilians carried political risks the Kremlin wanted to defer. Prisons offered a population that could be conscripted without triggering that backlash. The Institute for the Study of War noted that the Ministry of Defense stepped up prison recruitment in June 2023. That surge came, the Institute said, "in the wake of significant losses in Ukraine." Each new wave of casualties on the front drove a corresponding turn back to the prison population. The Ministry of Defense had already begun its own prison recruitment in October 2022. That was eight months before the June 2023 surge the Institute for the Study of War documented.

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• 3. Wagner's Prison Campaign

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  According to the New York Times, Prigozhin personally appeared in prisons around St. Petersburg beginning in early July 2022. He was the leader of the Wagner paramilitary group, and he did not send representatives. He walked the prison blocks himself, offering deals to inmates face to face. Through this campaign, Wagner grew its forces by an estimated 40,000 recruited prisoners. The effort was one of the earliest and largest examples of the program at scale. In February 2023, the arrangement ended abruptly. Wagner lost access to Russian prisons as tensions between the group and the regular Ministry of Defense came to a head.

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• 4. Storm Units

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  In April 2023, information emerged about a new series of units the Ministry of Defense had created: the Storm-Z detachments. Convicts assigned to Storm-Z received only ten to fifteen days of training before being deployed. They were then attached to regular Russian forces that had grown exhausted from sustained combat. On the 24th of June 2023, Vladimir Putin signed a law formally authorizing the recruitment of convicts into contract service with the Defense Ministry. That law disbanded Storm-Z and replaced it with a new program called Storm-V. One key difference set Storm-V apart. Storm-Z soldiers had been promised eventual release, but Storm-V soldiers would serve until the conflict itself ended.

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• 5. Cannon Fodder

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  In a September 2022 speech to prisoners, Prigozhin described exactly how recruits would be used. He told them they would serve as shock troops, leading attacks and absorbing heavy casualties. The role was not left ambiguous. Experts and captured Wagner soldiers alike described the prisoner recruits as used as "little more than cannon fodder." Ukrainian media reported that convicts were "dumped onto the front after 2-3 weeks of poor training and used as cannon fodder." Thousands of Wagner convict soldiers played a central role in the Battle of Bakhmut, taking part in wave attacks against Ukrainian positions. Prigozhin's speech also carried an explicit threat. Any prisoner who joined and then tried to flee would be "considered a deserter and shot." In March 2023, United Nations experts expressed concern over allegations that recruits were "regularly threatened and ill-treated by their superiors." The UN said it had received information that several recruits had been executed for trying to escape. In other cases, they reported, recruits were "seriously injured in public as a warning to other recruits." The experts described these practices as human rights violations and said they "may amount to war crimes." By March 2023, the British Ministry of Defense estimated that about half of the recruited Wagner prisoners had been killed or wounded in Ukraine. In November 2023, British intelligence reported an additional dimension. Russian commanders, it noted, were punishing soldiers who abused drugs and alcohol by assigning them to fight in Storm-Z detachments.

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• 6. The Price of a Pardon

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  Under the Wagner model, any prisoner who survived a six-month term was released into Russian society. He received a full pardon for his crimes alongside his freedom. Many of the freed men were hardened criminals, and Russians feared they would continue committing offenses. That fear had a concrete example. In August 2023, a convicted criminal freed after fighting with Wagner was arrested in Russia's Republic of Karelia. He was accused of stabbing six people to death. Olga Romanova of Russia Behind Bars put the consequence directly. "There are no more crimes, and no more punishments," she said. "Anything is permissible now, and this brings very far-reaching consequences for any country." By February 2025, the Institute for the Study of War concluded that Russia had mostly exhausted its prison population. The country could no longer generate significant forces from inmates. The Russian government cut enlistment bonuses for prisoner volunteers, effective the 1st of January 2025. A program that had drawn on more than a hundred thousand convicts had, by that point, run out of men.

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