National Security

National security is an umbrella term that refers to the stability of a country's political, economic, and territorial integrity as well as the preservation of its physical environment and the health of its citizens. A government creates national security policies to protect the country and its interests against threats and to secure the country's role in the world. The definition of what constitutes a threat to national security has evolved over time.

National security is achieved through cooperation between military, diplomatic, and social welfare agencies to create and implement effective short- and long-term policies. While the traditional view of national security focuses primarily on military security and defense, other components include political stability, economic sustainability and growth, energy and natural...