SHADOW PROTOCOLS
OPEN CHRONICLE MAGAZINE | INTELLIGENCE BRIEFING 004
By Open Chronicle Intelligence Desk
Russia and Ukraine | Human Intelligence & Counterintelligence | 19 October 2026
For months, a young Russian lieutenant allegedly passed military information to Ukrainian forces while remaining embedded in his own unit. His story reveals the human cost of betrayal, the vulnerabilities of military organisations and the moral complexity of espionage during wartime.
A lieutenant with two loyalties
In the conventional image of espionage, a spy operates under a false identity, infiltrates an enemy institution and gradually earns access to secrets.
Lev Stupnikov’s reported experience followed a different path.
He was already inside the institution whose information he would eventually disclose.
A Russian military officer trained in communications, Stupnikov was deployed to Ukraine in November 2023 as part of the 36th Guards Motorized Rifle Brigade. According to accounts later published by The Wall Street Journal and summarised by Meduza, he began cooperating with a Ukrainian intermediary while continuing to serve in the Russian armed forces.
For several months in 2024, he allegedly provided information that helped Ukrainian forces identify and strike Russian military positions.
The reported consequences were devastating.
Russian state broadcaster RT attributed more than 200 military deaths to strikes associated with his activities. The Wall Street Journal reported a figure exceeding 300.
These numbers are claims attributed to their respective sources. They should not be interpreted as independently verified casualty totals or proof that every death resulted directly from information supplied by Stupnikov.
His case nevertheless presents an extraordinary example of a wartime insider turning against the military organisation to which he belonged.
It also raises questions that extend beyond the Russia–Ukraine war.
How does a military officer become an intelligence source for an opposing army? What allows such a relationship to continue without detection? And how should the human consequences of that decision be understood?
1. From Kazakhstan to the Russian military
Lev Stupnikov was born in Kazakhstan and grew up in a family shaped by migration and economic uncertainty.
His father left when he was young, leaving his mother, Tatiana Yantsen, to raise Lev and his younger sister, Alisa.
When Lev reached adolescence, the family moved to Russia through a government programme intended to facilitate the resettlement of people with ties to the country.
They settled in Omsk, a major Siberian city with a long military history.
Stupnikov attended a cadet school before moving to St Petersburg in 2018 to study at the Military Academy of Communications.
Military communications are fundamental to modern armed forces.
Commanders depend on reliable communications to coordinate units, transmit orders, share intelligence and respond to changing battlefield conditions.
An officer trained in this field may acquire knowledge of organisational procedures, communications systems and the movement of information through a military formation.
That background would later become relevant to Stupnikov’s reported activities.
In 2021, he married his girlfriend, Liza.
According to the account presented by The Wall Street Journal, he was already considering whether to leave military service.
Russia’s full-scale invasion of Ukraine in February 2022 transformed the decision.
The war created a new reality for young Russian officers, many of whom faced the prospect of deployment to a conflict whose duration and consequences were uncertain.
Stupnikov completed his military education in 2023 and received the rank of lieutenant.
He was assigned to the 36th Guards Motorized Rifle Brigade, based in Russia’s Zabaykalsky region.
In November 2023, he was sent to Ukraine.
2. A family divided by the war
Stupnikov’s reported decision to cooperate with Ukraine cannot be understood without examining the role of his mother.
Tatiana Yantsen had become increasingly disillusioned with the Russian authorities.
According to the published accounts, the invasion of Ukraine intensified her opposition to the government’s policies.
She removed her daughter from school because of concerns about wartime propaganda and began contacting human rights advocates in search of ways to help her son leave military service.
The options presented to her involved considerable uncertainty.
Some advisers suggested routes through Belarus and Armenia.
Yantsen also urged Lev to take advantage of a planned journey through Moscow and fly to Kazakhstan, where relatives might provide shelter.
He declined.
The risks of abandoning military service, crossing borders and potentially exposing family members to consequences appeared too great.
By early 2024, his mother was searching for another possibility.
She contacted Dmytro Karpenko, a Ukrainian programmer and online commentator known for interviewing Russian prisoners of war and military defectors.
Karpenko’s activities included encouraging Russian personnel to provide information or cooperate with Ukrainian forces.
Yantsen initially wanted help securing her son’s departure from the Russian army.
Instead, the contact developed into something more consequential.
3. The contact that changed his role
In February 2024, Stupnikov reportedly began communicating directly with Karpenko.
After learning that his mother had contacted the Ukrainian blogger, he watched Karpenko’s interviews and subsequently initiated communication through WhatsApp.
According to his later public account, Stupnikov expressed willingness to cooperate and surrender.
He reportedly refused payment.
The distinction matters because intelligence recruitment can involve a variety of motivations.
Financial incentives are one possibility, but ideological opposition, personal grievances, fear, coercion and concern for family members can also influence an individual’s decisions.
In Stupnikov’s account, opposition to the war and a desire to escape military service were central factors.
Those explanations are based primarily on his own statements and the reporting surrounding them. They cannot independently establish every element of his private reasoning.
What followed was a clandestine relationship between a serving Russian officer and an individual assisting Ukraine’s military effort.
Stupnikov allegedly began supplying information about Russian forces while remaining embedded within his unit.
His position gave him access to information that could be operationally valuable to an opposing military.
His continued presence also exposed him to severe personal danger if discovered.
4. The February 2024 strike near Volnovakha
The most consequential episode in the reported account occurred in February 2024.
Russian soldiers had assembled at a training ground near Volnovakha, in Russian-occupied territory in eastern Ukraine.
According to the investigation summarised by Meduza, Stupnikov provided information about the gathering to his Ukrainian contact.
Ukrainian forces subsequently struck the location with rockets.
The attack caused substantial Russian casualties.
The account supplied to Open Chronicle cites 68 soldiers killed and approximately 60 wounded. Earlier reporting cited by Meduza described at least 60 deaths.
These figures reflect reporting rather than a complete independently verified casualty assessment.
Among those reported killed was Colonel Gusein Musayev, commander of the 36th Guards Motorized Rifle Brigade.
The strike illustrates the vulnerability of military personnel concentrated in locations exposed to enemy reconnaissance and precision weapons.
It also illustrates the potential importance of information originating from within a military formation.
However, the publicly available narrative does not establish that Stupnikov’s information was the sole source used to identify or target the gathering.
Modern military targeting can involve multiple sources of intelligence, including aerial reconnaissance, intercepted communications and information provided by human contacts.
The precise contribution of each source cannot be determined from the accounts cited here.
Stupnikov later described surviving the attack himself.
The reported episode became central to the story of his cooperation with Ukraine.
It was also the beginning of an increasingly difficult psychological and operational situation.
5. Months inside a compromised brigade
Following the February strike, Stupnikov allegedly continued providing information to his Ukrainian contact.
The reported material included military communications information, unit locations and details concerning planned activities.
For the Ukrainian side, such information could contribute to a wider understanding of Russian military operations.
For Stupnikov, remaining inside the brigade meant living among the people whose positions he was allegedly helping an opposing force identify.
The published accounts describe a unit suffering substantial losses.
Over time, many of the officers who had initially served alongside him were reportedly killed, wounded or transferred.
Stupnikov described becoming increasingly isolated.
He also reported anxiety, nightmares and guilt associated with the consequences of the strikes.
These statements are important because they complicate any simplified portrayal of espionage as a sequence of technical successes.
Intelligence activity during wartime can have direct and lethal consequences.
The individuals affected are not abstractions.
They include soldiers, families and communities whose experiences may be understood very differently depending on their relationship to the conflict.
Stupnikov’s account presents a man who opposed Russia’s invasion while participating in actions that reportedly contributed to the deaths of fellow Russian soldiers.
Those two realities are not mutually exclusive.
The moral and legal questions surrounding his actions cannot be resolved merely by describing them as either resistance or betrayal.
6. Crossing the front line
In July 2024, Stupnikov reportedly left Russian positions and crossed the front line into Ukrainian-controlled territory.
According to the account, Ukrainian personnel were expecting his arrival.
After reaching a reconnaissance team, he was taken into Ukrainian custody and subsequently processed.
For a military defector, crossing the front line is not simply a change of location.
It involves abandoning the authority of one armed force and entering the control of another, often without knowing whether prior arrangements will be honoured.
Stupnikov’s situation was particularly unusual because of his alleged previous cooperation with Ukrainian contacts.
The published accounts indicate that he initially hoped to leave the region and establish a civilian life elsewhere.
That prospect proved complicated.
Defectors can face security risks, uncertain legal status and the possibility of retaliation or prosecution.
In Stupnikov’s case, his public identification and reported involvement in lethal military operations created additional concerns.
He ultimately remained in Ukraine.
7. Joining the Russian Volunteer Corps
Following his arrival, Stupnikov was reportedly approached by Denis Kapustin, a leader of the Russian Volunteer Corps.
The organisation consists of Russian nationals fighting against Moscow alongside Ukraine.
It has been associated with armed operations against Russian forces and has attracted scrutiny because of the far-right backgrounds and affiliations of some of its prominent figures.
That context is important when describing Stupnikov’s subsequent decision.
According to the reporting, he joined the organisation after concluding that remaining in Ukraine offered greater security than attempting to settle elsewhere.
His transition from Russian officer to Ukrainian intelligence source and then to a fighter in an anti-Kremlin armed formation illustrates the complex trajectories that can emerge from military defection.
Such transitions can involve ideological commitments, practical survival considerations and changing personal circumstances.
They should not automatically be understood as evidence that every stage of a person’s involvement was motivated by the same considerations.
8. A family separated by incompatible loyalties
Stupnikov’s defection also had consequences for his family.
With Ukrainian assistance, his mother and younger sister reportedly left Russia.
His wife, Liza, chose to remain.
When Stupnikov publicly discussed his activities in September 2025, RT interviewed Liza.
She described rejecting his request to relocate abroad, explaining that she did not want to abandon her parents or her country.
Her account presents a different perspective on the same events.
For Stupnikov, leaving Russia and cooperating with Ukraine had become part of his response to the war.
For his wife, remaining in Russia represented a commitment to family and country.
The divergence demonstrates how wartime political and moral choices can divide households.
It also highlights the limits of interpreting a person’s actions exclusively through the language of national loyalty.
Family obligations, fear, identity and political beliefs can interact in ways that are difficult to separate.
Neither account establishes the full private history of the relationship.
Together, however, they reveal the personal consequences of a decision that became internationally visible.
9. The families of the soldiers who died
The human cost of the alleged intelligence activities extends beyond Stupnikov’s own family.
RT interviewed individuals it identified as relatives of Russian soldiers killed in strikes associated with information he allegedly provided.
Among them was Tatiana Guryeva, whose son Pavel was reportedly killed in the February 2024 attack near Volnovakha.
According to her account, Pavel had known Stupnikov and regarded him as a friend.
The reported relationship adds a particularly painful dimension to the story.
For families of the dead, the allegation that information came from a trusted member of the same unit can intensify feelings of betrayal and grief.
At the same time, interviews published by a Russian state-controlled broadcaster require careful attribution and contextual evaluation.
RT’s coverage reflects a media environment in which the war is also fought through narratives about loyalty, legitimacy and treason.
The existence of political framing does not mean that the grief expressed by relatives should be dismissed.
Nor does the emotional force of those accounts independently establish the full circumstances of each military death.
Responsible reporting must preserve both distinctions.
10. The intelligence significance of the case
Stupnikov’s story is relevant to counterintelligence because it illustrates the vulnerability created when a trusted insider decides to cooperate with an opposing force.
Military organisations depend on internal trust.
Officers must exchange information, coordinate operations and rely on colleagues to perform their duties.
Those requirements create opportunities for hostile intelligence collection if an individual with legitimate access becomes an unauthorised source.
The Stupnikov case also demonstrates that wartime intelligence activity does not always involve professional intelligence officers.
A serving military member may become a source because of personal circumstances, political opposition or contact with an intermediary outside a formal intelligence agency.
Such arrangements can create substantial risks for everyone involved.
The source may lack training and face exposure.
The receiving organisation must assess the accuracy and reliability of information.
The source’s own account may contain omissions, exaggerations or retrospective interpretations.
Public reporting introduces another layer of uncertainty because intelligence operations are rarely documented in full.
In this case, the reported casualty figures and details of particular strikes cannot all be independently reconciled.
The broader counterintelligence lesson, however, does not depend on accepting every operational claim.
Military secrecy is vulnerable not only to interception, cyber intrusion or external surveillance, but also to the decisions of people already authorised to access sensitive information.
11. Defection, espionage and the information war
The public emergence of Stupnikov’s story in September 2025 created competing narratives.
For Ukrainian audiences, his account could be presented as evidence that some Russian military personnel opposed the invasion and were willing to assist Ukraine.
For Russian state media, it became a story of betrayal and the deaths of fellow soldiers.
International reporting added a further perspective, focusing on the circumstances of his recruitment, the reported intelligence activity and the consequences for his family.
These narratives do not carry equal evidentiary weight on every point.
Some elements, such as Stupnikov’s public interview and the existence of the February 2024 strike, can be examined through multiple sources.
Other claims, including the precise number of deaths directly attributable to his information, depend on accounts whose underlying evidence has not been made fully public.
The distinction between a reported intelligence operation and its public presentation is essential.
Intelligence services and military organisations have reasons to protect sources and methods.
Governments and media outlets also have political and informational interests in how such cases are portrayed.
A careful reconstruction must therefore separate documented events, attributed testimony and analytical inference.
Strategic assessment: The human vulnerability inside military power
Lev Stupnikov’s reported activities illustrate a persistent paradox of military intelligence.
Armed forces invest heavily in secure communications, protected information systems and operational secrecy.
Yet their effectiveness ultimately depends on people.
A military organisation can control access to information, but it cannot guarantee that every individual with legitimate access will remain loyal to its command.
The reported Stupnikov case highlights three wider issues.
First, personal opposition to a war can become a counterintelligence concern when it leads a serving officer to cooperate with an opposing military.
Second, intelligence supplied by insiders can potentially influence battlefield operations, although establishing the precise consequences of an individual source requires evidence beyond public claims.
Third, the effects of wartime espionage extend beyond operational results. They affect families, military communities and individuals who must live with the consequences of their decisions.
The case also demonstrates the importance of resisting simplified narratives.
Stupnikov’s own account presents a young officer who opposed the invasion and sought a way out of the Russian army.
Russian state media presented him as responsible for the deaths of comrades, including men who reportedly trusted him.
The Wall Street Journal’s investigation, as summarised by Meduza, places those competing experiences within a broader story of family separation, clandestine cooperation and military violence.
The available record does not allow every claim to be independently verified.
What it does reveal is the enduring importance of human intelligence in a conflict increasingly associated with drones, precision weapons and electronic warfare.
Technology may transform how armies identify and strike targets.
But the decision of a single person to disclose sensitive information can still alter the course of events.
And behind every such decision are consequences that extend far beyond the intelligence operation itself.
Sources and Further Reading
The following sources provide the foundation for this investigation, including original reporting by The Wall Street Journal, independent reconstruction by Meduza, Lev Stupnikov’s public testimony, and contemporaneous reporting on the February 2024 strike near Volnovakha.
Published on 16 October 2026, this original investigation examines Lev Stupnikov’s background, his cooperation with Ukrainian contacts, his reported role in providing military intelligence, and the personal and operational consequences of his actions. The report provides the central investigative foundation for this article.
Published on 18 October 2026, this journalistic reconstruction presents the principal events surrounding Stupnikov’s life and reported defection. It covers his family background, contact with Ukrainian intermediary Dmytro Karpenko, alleged intelligence activities, and eventual departure from Russian military positions.
Released in September 2025, this public interview records Stupnikov’s own account of his decision to cooperate with Ukraine, his experiences while serving in the Russian military, and the circumstances surrounding his defection. His statements constitute personal testimony and should not be regarded as independent verification of every reported event.
Published on 21 February 2024, this report documents a Ukrainian strike against a gathering of Russian military personnel near Volnovakha. Its contemporaneous coverage provides important context for the reported casualties and military circumstances, independently of Stupnikov’s subsequent public interviews.
This article was prepared by the Open Chronicle Intelligence Desk using investigative reporting by The Wall Street Journal, coverage by Meduza, public testimony and contemporaneous reporting on military events. Claims concerning Lev Stupnikov’s intelligence activities, operational contributions and associated Russian casualties are attributed to their respective sources. Reported casualty figures have not been independently verified by Open Chronicle. Accounts published by parties to the conflict or state-controlled media are treated with appropriate caution. Strategic conclusions represent independent editorial analysis based on information available as of 19 October 2026.