: the preserving of peace
especially : international enforcement and supervision of a truce between hostile states or communities

Examples of peacekeeping in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
What next for Lebanon With the absence of an internal Lebanese consensus, the arrival of any international peacekeeping force to replace the exiting UNIFIL will be perceived by many Lebanese as a top-down imposition. — Mireille Rebeiz, The Conversation, 23 Oct. 2026 Repkin also noted that the contingents deployed to participate in the force are geared toward carrying out traditional peacekeeping tasks. — Jacqueline Charles, Miami Herald, 29 Sep. 2026 The plan included additional Israeli military withdrawals from Gaza, the disarmament of Hamas, the arrival of an international peacekeeping force and a new apolitical Palestinian government to administer the territory's day-to-day affairs. — Arkansas Online, 24 Sep. 2026 The plan included additional Israeli military withdrawals from Gaza, the disarmament of Hamas, the arrival of an international peacekeeping force and a new apolitical Palestinian government to administer the territory’s day-to-day affairs. — Matthew Lee, Los Angeles Times, 23 Sep. 2026 See All Example Sentences for peacekeeping

Word History

First Known Use

1910, in the meaning defined above

Time Traveler
The first known use of peacekeeping was in 1910

Browse Nearby Words

Cite this Entry

“Peacekeeping.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/peacekeeping. Accessed 27 Oct. 2026.

Kids Definition

peacekeeping

noun
: the enforcing of a truce between countries or groups by an international military force
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster