The Chief of the Defence Staff of the UK, Sir Richard Knighton, has raised alarms about the current geopolitical climate, stating that the nation is in the 'most dangerous period' he has known, surpassing even the Cold War tensions. In an interview with the BBC, he noted that the first five months of 2023 saw as many incursions by Russian strategic aircraft into UK airspace as all of 2022. Knighton emphasized the need for the UK to prepare for extended warfare, particularly in light of the ongoing conflict in Ukraine. He warned that Russia is escalating its threats through both military and cyber means, necessitating a reevaluation of national defense priorities. The anticipated Defence Investment Plan will detail military spending for the next decade, reflecting the urgent need for increased investment in defense capabilities. Knighton, alongside his German counterpart, has articulated a moral case for rearmament, arguing that a robust defense is essential to deter aggression. Their joint statement highlights the necessity for a comprehensive societal approach to security, stressing that defense is a collective responsibility.