Defense refers to measures taken by a state or organization to protect itself from external threats and maintain security. It involves actions aimed at safeguarding borders, military preparedness, and ensuring national safety.
Related terms
National Security: The protection of a nation's territory, citizens, resources, and interests from internal and external threats.
Military Alliances: Agreements between countries regarding mutual defense cooperation in times of conflict or aggression.
Arms Race: A competitive accumulation of weapons and military capabilities between nations seeking strategic advantages over one another.