The UK’s newly released National Security Strategy warns that the nation must actively prepare for potential warfare on home soil. Citing escalating global instability, including threats from Iran and the ongoing war in Ukraine, it calls for 'national resilience exercises' involving the public, businesses, and academia, aiming to build preparedness against cyberattacks, sabotage, and hostile actions from states like Russia, Iran, and China. Cabinet minister Pat McFadden stressed the need for Britain to be 'clear-eyed and hard-edged' in facing these threats, while Keir Starmer pledged to increase defence spending to 5% of GDP by 2035. Critics, such as Priti Patel, argue that the government lacks a detailed roadmap for defence spending targets. Nonetheless, the strategy invokes the wartime spirit of national unity and determination, urging a whole-of-society response to future challenges and affirming optimism grounded in the resilience of the British people.