The symposium will examine how Communications, Navigation, and Surveillance (CNS) technologies—underpinned by reliable and interference free radio frequency spectrum—are transforming air navigation services in an increasingly complex airspace environment. It will explore the role of CNS innovation in driving digital evolution and enabling next generation operational concepts, while addressing emerging risks such as GNSS jamming and spoofing and potential radio altimeter interference. By bringing together civil aviation authorities, air navigation service providers, industry leaders, and subject matter experts, the symposium will foster collaboration, share practical lessons learned, and strengthen collective resilience, helping to ensure the safe, smart, sustainable, and uninterrupted future of global air traffic operations.