National security
Security and defense of a sovereign state and its institutions.
National security, also called national defense, is the security and defense of a sovereign state, including its citizens, economy, and institutions, regarded as a duty of government. Originally conceived as protection against military attack, it now encompasses non-military dimensions such as terrorism, crime, economic security, energy security, environmental security, food security, and cybersecurity.
- field
- Security studies, political science, military strategy
- known_for
- Evolving concept from military defense to multi-dimensional security including economic, environmental, and cyber threats
- key_definers
- Walter Lippmann, Harold Lasswell, Arnold Wolfers, Harold Brown, Charles Maier, National Defence College of India, Prabhakaran Paleri
Lore & Background
National security was originally conceived as protection against military attack. Over time, definitions expanded to include non-military concerns.
Reader's Guide
National security has evolved from a narrow focus on military threats to a broad concept encompassing economic security, energy security, environmental security, food security, border security, and cybersecurity. Governments rely on political, economic, and military power, as well as diplomacy, to safeguard security. They also act to reduce transnational causes of insecurity such as climate change, economic inequality, political exclusion, and nuclear proliferation. The concept remains contested, with various definitions proposed by scholars and institutions, reflecting its multidimensional and dynamic nature.
Did You Know?
- National security risks include actions by other states, violent non-state actors, narcotic cartels, organized crime, multinational corporations, and natural disasters.
- Cyberspace is now recognized as a domain of warfare, with examples including the use of Stuxnet against the Iranian nuclear program.
- Infrastructure security seeks to limit vulnerability of critical structures to sabotage, terrorism, and contamination.
Frequently Asked Questions
What is National security in Constitutional Law 1-24?
It is the constitutional principle that a sovereign state must protect its citizens, economy, and institutions, and is treated as a core duty of government. Originally framed around military defense, it now also covers terrorism, economic instability, environmental risks, and cyber threats.
What are National security's powers or role?
National security serves as the legal foundation through which a state justifies safeguarding its people and institutions against both armed and non-armed threats. Its modern scope stretches across energy, food, environmental, and cybersecurity dimensions, giving governments a broad but structured mandate to act.
How does National security's story end?
The concept has no fixed finale; instead, its arc keeps expanding as new categories of threat—cyber attacks, climate risks, economic disruption—get folded into the definition. In canon terms, it remains an evolving framework rather than a concluded chapter.
Why is National security important in constitutional law?
It anchors the state's right to defend its people while simultaneously setting the boundaries within which that power must operate, making it a flashpoint in every debate over civil liberties versus state authority. Without this constitutional pillar, responses to invasion, terrorism, or cyber warfare would lack a coherent legal basis.
Who are the key definers behind National security?
Thinkers like Walter Lippmann, Harold Lasswell, Arnold Wolfers, and Harold Brown helped move the idea from a narrow military concept to a multi-dimensional security framework. Later contributors, including scholars at the National Defence College of India and Prabhakaran Paleri, broadened its application in the global and post-Cold War context.
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