A leading defence expert has warned that the UK is heading for a military confrontation with Russia within the next few years, following the resignation of Defence Secretary John Healey. Professor Michael Clarke, a former director of the Royal United Services Institute (RUSI), said the resignation exposed severe fractures over war preparedness inside Sir Keir Starmer's government.
The dispute centres on the Government's unreleased Defence Investment Plan (DIP), which was meant to fund a critical 10-year defence upgrade from 2025 to 2035. Chancellor Rachel Reeves is reportedly prepared to offer only half the cash required, leaving the UK dangerously exposed. Prof Clarke said the Government has already wasted the first year of the programme and is now deep into wasting the second.
Healey's statement made clear the DIP is inadequate, Prof Clarke noted, adding that the Government has failed to pivot from a peacetime economy by prioritising the welfare bill. The budget dispute could have terrifying consequences for global security, as European allies lose faith in Britain and Vladimir Putin might soon test NATO's Article 5 collective defence clause.
Prof Clarke said: 'I think we're heading for a military confrontation with Russia in the next couple of years. It may or may not be a war, but we're heading for a military confrontation... and probably at sea.' He added that there would be shooting and killing, and possibly a confrontation on European territory. With Donald Trump in the White House, Britain's lack of preparation leaves it helpless on its own: 'We haven't got much hope of stopping Russia doing whatever it wants to do.'



