Russian President Vladimir Putin is preparing to mobilise between 300,000 and 500,000 additional troops after Russia’s parliamentary elections in September, Ukrainian President Volodymyr Zelensky has claimed, amid warnings over the potential for further escalation in the war. Citing Ukrainian intelligence, Zelensky said Moscow could launch the mobilisation after the elections scheduled for late September, but argued that the Kremlin would seek to avoid conducting the exercise openly because of concerns over the domestic reaction.
According to Zelensky, Russia could instead seek to bring large numbers of people into the military through contracts and other mechanisms while restricting the ability of military-age men to leave the country. The Ukrainian president’s assertion has not been independently verified, and Moscow has not announced a new mass mobilisation of the scale claimed by Kyiv. Russia has largely relied on contract recruitment to replenish its forces, although reports indicate that Moscow continues to face significant manpower pressures as the war stretches on. The Financial Times reported on Monday that Russia has increasingly relied on coercive recruitment practices as it attempts to sustain troop numbers without another politically sensitive mobilisation.
The claims come as speculation grows over the options available to Putin if Russia finds itself under increasing military pressure. Nuclear escalation remains among the most serious concerns surrounding the conflict, although there is no indication that Moscow has taken a decision to use nuclear weapons. Russia has repeatedly invoked its nuclear capabilities during the war, while Western governments have sought to deter Moscow from escalating the conflict beyond conventional warfare.
The Kremlin’s last major mobilisation was announced in September 2022, when Putin ordered what Moscow described as a “partial mobilisation” of reservists after Russian forces suffered battlefield setbacks. The politically sensitive move prompted thousands of Russians to leave the country. A fresh mobilisation involving as many as half a million personnel would therefore represent a significant escalation in Russia’s manpower commitment to the war. However, the claim currently rests on Ukrainian intelligence assessments rather than a publicly announced Russian policy.
Recent assessments also suggest Russia is broadly managing to replace battlefield losses through ongoing recruitment but has not generated sufficient additional manpower to decisively alter the trajectory of the conflict. Zelensky has argued that a new mobilisation would demonstrate that Moscow is preparing for a prolonged conflict rather than seeking to wind down military operations. The warning comes as both Russia and Ukraine continue long-range strikes and military operations, with the conflict showing little sign of reaching a decisive conclusion. While fears surrounding Russia’s nuclear arsenal have persisted throughout the war, any suggestion that nuclear weapons represent Putin’s imminent “last option” remains speculative. The more immediate concern raised by Kyiv is whether Moscow will undertake another large-scale mobilisation after the September elections in an effort to substantially expand its forces.