Prime minister Keir Starmer has promised to hike UK defence spending to 5% by 2035.Keir Starmer will announce a historic boost in national security spending at Tuesday’s Nato summit during this “era of radical uncertainty”.While gathering with his allies in The Hague this week, the prime minister will promise to spend 5% of gross domestic product (GDP) on national security by 2035.His pledge comes days after the US joined Israel in bombing Iran and as Vladimir Putin continues his brutal land grab in Ukraine. US president Donald Trump has been pressuring Europe to take more responsibility for its defence, too.According to the government, this new target means the UK will meet Nato’s demands for member states’ defence spending.Starmer announced in February that the government was boosting defence spending from 2.3% to 2.5% by 2027, with an ambition to increase that to 3% by 2035.However, that is now being increased to 3.5%, with an additional 1.5% of “national resilience and homeland security”, which includes protec