It comes as 2,500 UK troops take part in Nato's largest exercise this year near Ukraine's border.

Years of spending cuts have removed the ability of British forces to prosecute a war against a peer adversary for an extended time.

Prime minister Sir Keir Starmer has announced he is “ready and willing” to put British troops on the ground in Ukraine to enforce any peace deal.

The UK 'would be expected to play a major role' if a peacekeeping force is sent to enforce ceasefire with Russia

Video released by the British Ministry of Defence showed Ukrainian recruits training at an undisclosed military facility in Britain. The training is part of the Operation Interflex that aims to train Ukrainian soldiers fighting the war with Russia.

"Europe must play its role, and I'm prepared to consider committing British forces on the ground alongside others, if there is a lasting peace agreement, but there must be a U.S. backstop, because a U.