Ally of PM-in-waiting says four-year boost for the armed forces is an ‘unexploded bomb’ Britain has finally grasped the nettle on defence, but tough choices lie ahead Andy Burnham will have to find an extra £4.7bn for defence in his first budget, after Keir Starmer announced a £298bn defence investment plan (Dip) without having fully identified how it will be funded. Sources close to the Makerfield MP said he would not try to renegotiate the Dip after the outgoing prime minister announced its details at a press conference on Tuesday. £47bn on new nuclear submarines, including the Dreadnought replacement for the Trident submarines and the new Aukus attack submarine project, being developed with Australia and the US. £13bn on a new nuclear warhead and £1.7bn on nuclear fuels. Another promise