British officials have claimed the country could be dragged into a full-scale conflict with Moscow

The UK government is preparing to expand the call-up age for reservists to ready the army for a potential war with Russia, The Telegraph reported on Thursday, citing sources.

According to the newspaper, the plan would raise the maximum age at which retired soldiers can be recalled from 55 to 65. Veterans would form part of a strategic reserve that could be mobilized to support regular forces.

The proposed reform would also change the conditions under which retired personnel can be summoned back to service. Current rules allow call-ups only in cases of "national danger, great emergency or attack," but the new framework would lower the threshold to "warlike preparations."

The measures are reportedly part of a new armed forces bill due to be introduced in Parliament. They are expected to expand the pool of service personnel by tens of thousands.

The British Army is currently at its smallest size in more than two centuries, and has fewer than 70,000 fully trained full-time servicemen ready for frontline deployment. The UK previously pledged to increase the force to 76,000 by 2029 but added only 240 soldiers over the past year

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The initiative is reportedly driven by concerns that Britain could be drawn into a direct confrontation with Russia. The UK has been one of Ukraine's main backers in its conflict with Russia, providing financial and military aid, and British officials have partly justified the involvement by claiming Moscow could attack Europe once the fighting ends. Earlier this month, London announced it would seek to deploy British troops to Ukraine alongside France if a ceasefire deal between Moscow and Kiev is reached.

Russia has dismissed claims that it poses a military threat to Britain or Europe as "nonsense," arguing such rhetoric is used to justify inflated defense budgets, divert public attention from domestic problems, and stall peace efforts.

Moscow has also repeatedly rejected any foreign troop deployments near its borders. Foreign Ministry spokeswoman Maria Zakharova warned last week that any Western military presence in Ukraine would be treated as "intervention."

READ MORE: Britain needs war: Why London can't afford peace in Ukraine

Russian officials have long accused London of being a key driver of the Ukraine conflict, alleging the British government is deliberately seeking to prolong hostilities in a bid to confront Russia.