Britain's 'boldest' military shake-up in a generation

PM announces submarines and cyber revamp in defence review

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The UK will move to "war-fighting readiness", Sir Keir Starmer said as questions remained about his plans to increase defence spending.

The Prime Minister said he was "100 per cent confident" the plans in the new strategic defence review-including extra attack submarines, £15 billion on nuclear warheads and thousands of new long-range weapons - could be delivered on current funding plans.

The Government will increase defence spending to 2.5 per cent of gross domestic product from April 2027 with an ambition - but no firm commitment - to increase it to 3 per cent during the next parliament.

The Prime Minister said all parts of society needed to be involved in dealing with an increasingly dangerous world.

He said the plan would create "a battle-ready, armour-clad nation with the strongest alliances, and the most advanced capabilities, equipped for the decades to come".

Launching the review in the shadow of Type 26 frigates being built in BAE Systems' shipyard in Govan, Glasgow, Sir Keir said

"three fundamental changes" would be made to the UK's defence.

"First, we are moving to war-fighting readiness as the central purpose of our armed forces.