In this episode, we explore how national defence changes when society itself becomes digital. Mikk Tikk, Deputy Commander of the Estonian Defence Forces Cyber Command and lead mentor at NATO DIANA, explains why cyber security protects a way of life rather than just infrastructure. He outlines how redundancy, joint exercises, and close cooperation with the private sector shape modern defence, why Cyber Command must be ready to operate without the internet, and how innovation, from AI to drones and space-based networks, is redefining both threats and capabilities.