: 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.
Uganda is withdrawing troops deployed for years in Somalia under an African Union peacekeeping force that helped repel militants in the Horn of Africa nation, military authorities said on Monday. — ABC News, 2 Nov. 2026 Uganda has called on the African Union to consider deploying its standby peacekeeping and humanitarian force to help contain an Ebola outbreak that has killed nearly 5,000 people in DR Congo. — Ruben Nyanguila, semafor.com, 30 Oct. 2026 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 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 3 Nov. 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