Russia's Enduring War Machine: Strategic Redeployment and Sustained Offensive Capability Through 2026

The International Institute for Strategic Studies (IISS) has concluded that Russia retains the capacity to sustain its invasion of Ukraine throughout 2026, despite mounting economic pressures and manpower challenges. This assessment, released on February 24, 2026, coincides with the fourth anniversary of Russia's full-scale invasion and underscores a sobering reality for Western policymakers: the Kremlin's war economy has proven far more resilient than many analysts predicted.

According to Bastian Giegerich, director general of IISS, there is "little indication" that Russia's ability to continue the war for a fifth year has diminished. The thinktank's annual Military Balance report reveals that the Kremlin allocated at least $186 billion to defense in 2025, representing a 3% increase in real terms and amounting to 7.3% of Russia's GDP. This figure is more than double the proportion spent by the United States and approximately three times that of the United Kingdom. Defence finance expert Fenella McGerty notes that while Russia's economy is slowing, which could precipitate a potential decline in real-terms military spending in 2026, this must be contextualized against several years of dramatic growth. Military expenditure has doubled in real terms since 2021, providing Moscow with substantial resources to fund equipment procurement and recruitment campaigns necessary to sustain its relentless ground and air offensives against Ukraine.

Recent battlefield intelligence from the Institute for the Study of War (ISW) indicates that the Russian military command has undertaken significant tactical redeployments in early March 2026. Elite airborne (VDV) and naval infantry units have been laterally redeployed from the Pokrovsk direction and the Dobropillya tactical area in eastern Ukraine to the southern frontline. This redeployment suggests several strategic considerations: first, that Russian forces may be responding to Ukrainian counteroffensive pressure in the south; second, that the Kremlin is attempting to consolidate its most effective combat formations in sectors it deems strategically critical; and third, that Russian operational planning continues to prioritize territorial gains in specific directions over maintaining uniform pressure across the entire front.

The movement of these premier units is particularly significant given Russia's ongoing manpower challenges. Nigel Gould-Davies, a Russia expert at IISS and former UK ambassador to Belarus, has observed "growing signs that Russia's rate of recruitment has begun to fall short of its monthly losses" on the battlefield. While Moscow continues to recruit an estimated 30,000 to 35,000 personnel monthly, Gould-Davies notes a concerning decline in recruit quality, with military authorities increasingly forced to accept "the alcoholics and the drug addicted, and the frankly sick." Russian casualty figures remain substantial: UK Ministry of Defence data indicates Russia incurred 35,030 casualties in December 2025 and 31,713 in January 2026, though Western officials cited figures approaching 40,000 casualties per month in early 2026. If recruitment continues to fall short of losses, Moscow may eventually face a "moment of truth" requiring a second enforced mobilization, risking the scale of social unrest witnessed during the September 2022 enlistment campaign.

Beyond conventional military operations, Russia has systematically expanded its long-range strike capabilities throughout the conflict. The IISS assessment highlights Moscow's development of modernized attack drones, including an upgraded Shahed-136 variant capable of striking targets across Europe at ranges extending to 2,000 kilometers. This capability represents a strategic threat not merely to Ukraine but to NATO's eastern flank and critical infrastructure throughout Europe. On March 7, 2026, Russia launched a massive combined strike against Ukrainian territory, employing over 400 drones and missiles in what Ukrainian officials described as one of the largest attacks of the war. The assault targeted energy infrastructure, transportation networks, and residential areas across multiple regions, including Kharkiv, Kyiv, Odesa, Vinnytsia, and Zhytomyr oblasts. In Kharkiv specifically, Russian forces employed what appears to be a new air-launched cruise missile variant, demonstrating ongoing weapons development and tactical innovation despite Western sanctions regimes.

The Institute for the Study of War's March 7 assessment noted that Ukrainian forces have recently achieved tactical successes that disrupted Russian efforts to set conditions for a planned Spring-Summer 2026 offensive. These Ukrainian battlefield gains have forced Russian troops to establish stable defensive positions before resuming offensive operations to regain lost ground. However, ISW analysts observe that the Russian military command continues to operate with wildly unrealistic operational timelines that do not align with Russia's actual battlefield capabilities, suggesting potential dysfunction in the command structure or deliberate political pressure from the Kremlin to demonstrate progress regardless of operational realities.

Russia's war effort increasingly relies on what IISS characterizes as a comprehensive military modernization program. Moscow is not merely sustaining existing capabilities but actively developing new battle tactics, missiles, and unmanned systems informed by combat experience in Ukraine. This "learning by doing" approach poses long-term challenges for NATO, as Russian forces adapt their doctrine in real-time based on battlefield feedback. The Kremlin's willingness to accept extraordinarily high casualty rates while simultaneously investing in technological development suggests a strategic calculus that prioritizes long-term military capability enhancement over short-term personnel preservation.

The implications for European security are profound. Despite ongoing diplomatic discussions between Presidents Donald Trump and Volodymyr Zelenskyy regarding potential peace proposals, Russia continues to intensify attacks on Ukraine's critical infrastructure and population centers. Giegerich emphasized that this underscores the urgent need for NATO to "increase investments in missile defence and anti-drone systems." The necessity of such systems was dramatically illustrated in September 2025 when 21 Russian drones crossed into Polish airspace, forcing the closure of several airports and requiring emergency shelter-in-place orders for residents in three regions.

In response to the escalating Russian threat, European NATO allies and Canada pledged in summer 2025 to increase defense budgets to 3.5% of GDP by 2035. However, IISS cautions that achieving this target will require "sustained and significant investments" that many NATO members will find challenging given competing domestic priorities and fiscal constraints. Furthermore, even with increased spending, Europe will likely remain militarily dependent on the United States "well into the 2030s" for critical capabilities including military intelligence, cloud computing infrastructure, and space-based assets. Air and missile defense systems represent a particular priority area where European capability gaps are most acute.

The strategic picture emerging from March 2026 assessments is one of a protracted conflict with no immediate resolution in sight. Russia's defense industrial base has successfully transitioned to wartime production levels, its economy has absorbed Western sanctions more effectively than anticipated, and its military continues to demonstrate operational adaptability despite severe losses. While manpower pressures may eventually constrain Russian offensive operations, Moscow currently possesses the resources and political will to sustain high-intensity combat operations throughout 2026 and potentially beyond.

For Western policymakers, this reality demands a fundamental reassessment of support strategies for Ukraine. The conflict is no longer a sprint but a marathon, requiring sustained military aid, long-term economic support, and comprehensive planning for Ukraine's reconstruction and security guarantees in any post-conflict settlement. Simultaneously, NATO must accelerate efforts to enhance its eastern flank defenses, particularly in air and missile defense, to deter potential Russian escalation beyond Ukraine's borders. The redeployment of elite Russian units in March 2026 demonstrates that Moscow retains the capacity for sophisticated operational maneuvers, suggesting that the Russian military, despite its losses, remains a formidable adversary capable of sustained high-intensity operations in the European theater.