Britain’s rearmament in response to the war in Ukraine is prompting the critical debate as to whether national military service, voluntary or otherwise, make a comeback? Yet, in the face of Russia aggression while governments across Europe weigh the issue, it is proving deeply divisive – struggling to win support from both the armed forces and the young people expected to serve, reports eunews.
The experience of Ukraine, a nation already at war with Russia, offers a stark and instructive case study. The lessons are painful, dramatic, and full of contradictions – but they could shape the future of military service in the UK.
Before Russia’s full-scale invasion in 2022, Ukraine’s debates around the army were largely technical: reforms, NATO standardisation, and a gradual shift to a professional force. After Putin's invasion in February 2022, military service was no longer a policy abstraction – it became a matter of national survival.
In the early days of the invasion, Ukraine relied on an extraordinary wave of voluntary mobilisation. Thousands of people with no combat experience joined the Armed Forces and territorial defence units. But as the war grinds into its fourth year, public attitudes have shifted. Many Ukrainians now try to avoid mobilisation – not out of disloyalty, but due to social, economic, and psychological pressures.
President Volodymyr Zelensky has openly acknowledged shortages in the armed forces. He says expanding mobilisation is “a difficult issue for the state, the army, society, and Ukraine’s partners.”
Currently, the military command has called for around 30,000 new conscripts per month, but Zelensky notes the challenge of balancing service obligations with citizens’ need to work and pay taxes.
Ukraine shows that even in wartime, voluntary enlistment has limits. Legal frameworks are not enough – motivation, quality training, and ongoing social support are just as vital. The debate continues over whether to lower the mobilisation age from 25 to 18, following pressure from the US and NATO to increase manpower for frontline units.
Incentives, rather than coercion, are now the priority. Ukraine has introduced a one-year ‘Contract 18–24’ for men aged 18 to 24, offering up to €22,000, interest-free mortgages, and expanded social benefits for combat roles such as infantry, grenade launchers, and reconnaissance. Training lasts over 80 days, underlining the importance of preparing recruits for real combat.
The Ukrainian conflict has also shown that technology can ease, but not eliminate, manpower challenges. FPV drones and robotic platforms increasingly carry out tasks once handled by soldiers, and 2025 is described by Commander-in-Chief Oleksandr Syrskyi as a “breakthrough year” for unmanned systems. Yet technology cannot replace human judgment on the battlefield. The Center for Strategic and International Studies notes that the unpredictability of combat demands rapid decision-making and adaptability – qualities that remain uniquely human.
For Britain and other European nations considering a return to conscription, Ukraine offers a crucial warning: even the most advanced technologies cannot solve the fundamental challenges of military service. Motivation, rotation, and psychological resilience remain as critical as weapons and drones. Any plan for conscription or expanded voluntary service must account for these realities – or risk repeating Ukraine’s harsh lessons.
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