Defence sources believe that Britain will be forced to sign up to a target of lifting defence spending to 3.5% of GDP by 2035 at this month’s Nato summit after a campaign by the alliance’s secretary general to keep Donald Trump onboard.
One senior insider said Britain would “without a doubt” sign up to a proposal from the Nato chief, Mark Rutte, to lift allies’ defence spending, which would represent a real-terms increase of about £30bn from the Labour government’s plan.
