Oleksandr Syrskyi: The General Who Shaped Ukraine’s War — and Divided Its Military

Few military leaders have had a greater influence on the course of Russia’s full-scale invasion of Ukraine than Oleksandr Syrskyi. He oversaw the defence of Kyiv during the first weeks of the invasion, helped design the Kharkiv counteroffensive that transformed the battlefield in 2022, and later assumed command of the Armed Forces of Ukraine during the most difficult stage of a prolonged war of attrition.

Yet the same commander who became synonymous with some of Ukraine’s most important victories has also emerged as one of the country’s most controversial military figures. Admired for his operational discipline and ability to stabilise collapsing fronts, Syrskyi has simultaneously become the focus of an increasingly public debate over battlefield losses, command culture and the future direction of Ukraine’s military.

His career reflects more than the story of one general. It mirrors the transformation of Ukraine’s armed forces as they attempt to evolve from a Soviet-inherited command structure into a modern military capable of fighting one of the world’s largest armies.

The General Who Stopped Russia at Kyiv

When Russian forces crossed Ukraine’s borders in February 2022, the Kremlin expected Kyiv to fall within days. Instead, the Ukrainian capital became the site of Moscow’s first strategic defeat.

As Commander of the Ground Forces, Syrskyi coordinated the defence of Kyiv through a combination of mobile defence, disruption of Russian logistics, close cooperation between regular units and Territorial Defence Forces, and rapid adaptation to changing battlefield conditions. Rather than concentrating solely on defending the city itself, Ukrainian forces systematically targeted Russian supply lines and command nodes, forcing Moscow to abandon its assault by early April.

The successful defence of Kyiv reshaped international perceptions of the war, convinced Western governments that Ukraine could prevail, and created the political conditions for unprecedented military assistance. Syrskyi’s role earned him the title of Hero of Ukraine and established his reputation as one of Kyiv’s most capable operational commanders.

Kharkiv: The Operation That Changed the War

If Kyiv demonstrated Ukraine’s ability to survive, the Kharkiv counteroffensive demonstrated its ability to seize the initiative.

Widely regarded as one of the principal architects of the September 2022 campaign, Syrskyi helped execute an operation built on deception, speed and operational surprise. Ukrainian forces convinced Russian commanders that the main offensive would take place in the south before launching a rapid breakthrough in the Kharkiv region.

Within days, Russian troops abandoned key logistical hubs including Izium and Kupiansk, while Ukraine liberated thousands of square kilometres of occupied territory. Military analysts continue to cite the operation as one of the most successful examples of manoeuvre warfare in the conflict.

For many Western observers, Kharkiv marked the moment Ukraine demonstrated that it could not only defend itself but also defeat Russia in large-scale conventional operations.

Leading an Army in a Different War

By the time President Volodymyr Zelenskyy appointed Syrskyi Commander-in-Chief in February 2024, the nature of the war had fundamentally changed.

Ukraine no longer enjoyed battlefield momentum. Russian industry had significantly increased ammunition production, drone warfare had become the defining feature of combat, and both armies were increasingly fighting a technologically driven war of attrition.

Under Syrskyi’s leadership, Ukraine accelerated the transition towards a corps-based command structure, expanded the integration of unmanned systems across combat units, increased long-range strikes against Russian military infrastructure and sought to modernise command-and-control through digital technologies. Syrskyi repeatedly argued that future military superiority would depend not only on manpower but also on artificial intelligence, autonomous systems and technological innovation.

Bakhmut and the Cost of Attrition

No episode defines Syrskyi’s command more than the battle for Bakhmut.

Supporters argue that the prolonged defence exhausted Russia’s most capable assault formations, particularly Wagner Group units, disrupted Moscow’s offensive timetable and bought valuable time for Ukraine to strengthen other sectors of the front.

Critics reach a different conclusion. They argue that the operation imposed unsustainable costs on Ukrainian forces while producing only limited strategic gains. The debate surrounding Bakhmut became symbolic of a wider disagreement over whether preserving territory should take precedence over preserving experienced personnel.

That debate has continued well beyond the battle itself and remains central to assessments of Syrskyi’s command.

Criticism From Within the Ranks

Public criticism of Ukraine’s military leadership emerged long before recent political debates.

One of the most widely discussed cases involved Lieutenant Colonel Anatolii Kozel, known by the call sign “Kupol”. In an interview with The Washington Post in 2023, he argued that heavy battlefield losses had forced his battalion to receive insufficiently trained replacements, some of whom lacked basic combat skills. Shortly after the interview, he was removed from his frontline command and reassigned to a training position. Military authorities stated that he had violated communication protocols, while Kozel maintained that he intended to draw attention to systemic shortcomings in mobilisation and training rather than criticise the Armed Forces themselves.

Although Kozel never directly blamed Syrskyi, the episode became part of a broader public discussion over whether frontline commanders had sufficient space to raise concerns about operational problems.

More direct criticism came from Bohdan Krotevych “Tavr”, the former chief of staff of the Azov Brigade. Speaking to The Guardian, he argued that Ukraine required new military leadership and accused the General Staff of excessive centralisation, operational micromanagement and limiting the initiative of battlefield commanders.

Similar concerns have periodically appeared in reporting by Ukrainian media, where serving officers speaking anonymously have described an increasingly centralised command structure and greater involvement by senior headquarters in tactical-level decision-making.

The Other Side of the Debate

Despite sustained criticism, Syrskyi has retained the respect of many senior officers who served alongside him throughout the war.

Colonel Vadym Sukharevskyi, the first commander of Ukraine’s Unmanned Systems Forces, has publicly described Syrskyi as a commander willing to embrace technological innovation despite often being portrayed as a representative of the old military school. Sukharevskyi has argued that the expansion of drone capabilities and the growing role of unmanned systems accelerated under Syrskyi’s tenure as Commander-in-Chief.

Major General Viktor Nikoliuk, former commander of Operational Command North and one of the officers involved in the defence of Kyiv, has repeatedly credited Syrskyi with maintaining operational coordination during the battle for the capital, describing him as a commander capable of making difficult decisions under extreme pressure.

Other officers interviewed by Ukrainian media have similarly argued that Syrskyi evaluates commanders primarily on battlefield performance rather than personal connections. Supporters credit him with replacing ineffective senior officers, promoting experienced combat leaders and preserving institutional cohesion during one of the most demanding periods of the war.

They also note that Syrskyi inherited command under significantly less favourable conditions than his predecessor. By 2024, Ukraine faced ammunition shortages, slower Western military deliveries and a far more resilient Russian defence industry than during the first two years of the invasion.

Why Syrskyi Is Back at the Centre of Ukraine’s Political Debate

For much of the war, criticism of Oleksandr Syrskyi remained largely confined to military circles. That changed in July 2026.

The resignation of Defence Minister Mykhailo Fedorov transformed a long-running internal dispute over military reform into a public political crisis. In his resignation statement and subsequent interviews, Fedorov accused the military leadership of resisting key reforms, particularly in the fields of technological innovation, procurement and the integration of drone capabilities. Although he did not frame the disagreement as a purely personal conflict, his criticism intensified scrutiny of the relationship between the Ministry of Defence and the General Staff.

The fallout quickly spread beyond government. Demonstrations in Kyiv and several other Ukrainian cities evolved from support for Fedorov into broader calls for changes within the country’s military leadership. Protesters demanded the dismissal of Commander-in-Chief Oleksandr Syrskyi, arguing that Ukraine required a new generation of commanders better suited to the evolving character of the war.

One name emerged repeatedly during those demonstrations: Lieutenant General Mykhailo Drapatyi. Widely respected for his leadership on some of the most difficult sectors of the front and credited with restoring operational effectiveness in several critical areas, Drapatyi has increasingly been viewed by parts of the military community and sections of civil society as a potential successor capable of accelerating organisational reforms while maintaining battlefield credibility.

The Ukrainian government has not announced any decision regarding Syrskyi’s future. Nevertheless, the debate itself illustrates how discussions about one commander have become inseparable from wider questions about military reform, civil-military relations and Ukraine’s long-term strategy for the remainder of the war.

More Than One General

The debate surrounding Oleksandr Syrskyi has never been solely about one commander. It reflects the transformation of Ukraine’s Armed Forces as they adapt from the legacy of Soviet military doctrine to the realities of twenty-first century warfare.

Syrskyi’s supporters see him as the officer who delivered Ukraine’s two defining military achievements of the war—the defence of Kyiv and the Kharkiv counteroffensive—and later preserved the coherence of the Armed Forces during a far less favourable stage of the conflict. His critics argue that the same command philosophy has struggled to adapt to a battlefield increasingly shaped by decentralised decision-making, unmanned systems and rapid tactical flexibility.

Both assessments can be true at the same time. Syrskyi belongs to the generation of commanders that secured Ukraine’s survival in 2022, but his tenure has also exposed the limits of a command model designed for a different kind of war. His legacy will therefore be measured not only by the battles he won, but by how successfully Ukraine’s military continues the institutional transformation that began under his command.

Regardless of future political decisions, Oleksandr Syrskyi has already secured a place among the defining military leaders of Russia’s full-scale invasion. The debate over his leadership ultimately says as much about Ukraine’s evolving military doctrine as it does about the general himself.

Sources: The Washington Post, The Guardian,Institute for the Study of War (ISW), Royal United Services Institute (RUSI), NV