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collective security

British  

noun

  1. a system of maintaining world peace and security by concerted action on the part of the nations of the world

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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Without a more robust multilateralism, we risk replacing an imperfect system of collective security with the brutal reality of widespread insecurity.

From The Wall Street Journal Mar. 30, 2026

That was from an international rules-based order, under “American hegemony,” which he said “helped provide public goods, open sea lanes, a stable financial system, collective security, and support for frameworks for resolving disputes.”

From Barron's Jan. 24, 2026

The US is the only country to have invoked the collective security provisions of Nato's Article 5, which states that "an armed attack against one Nato member shall be considered an attack against them all".

From BBC Jan. 22, 2026

“We will have to decide how best to protect our security interests, which, as allies, should be our collective security interests,” he added.

From New York Times Mar. 14, 2024

They are the foundations of collective security and of the future of free nations.

From State of the Union Address by Harry S. Truman

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