national security theory

National security theory examines how countries protect themselves from threats that could harm their sovereignty, citizens, or key interests. It involves understanding risks like military attacks, terrorism, cyber warfare, economic instability, and political turmoil. Theories explore strategies such as military defense, intelligence gathering, diplomatic relations, and economic resilience to maintain stability and safety. Ultimately, national security aims to balance openness with protection, adapting to changing global threats while ensuring a nation's core functions and values remain secure.