What is collective security?

• A. A security arrangement where states agree to take collective action against threats to peace.
• B. A framework where states cooperate solely for economic gain.
• C. A system where one nation enforces peace unilaterally.
• D. An agreement that eliminates all military forces worldwide.

Answer: (A)

Collective security is a system in which states commit to acting together to oppose threats to peace. The idea is that aggression against one member is aggression against all, and the group agrees to respond with a coordinated set of measures, often through an international body or treaty framework. This emphasis on joint action contrasts with pursuing security through individual national efforts or specific self-interested goals, and it isn’t about one nation enforcing peace unilaterally or about eradicating all military forces. It captures the goal of building peace through collective response to aggression, not just through economic cooperation or isolated power.