: 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
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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 Guterres has been outspoken on AI since 2021, and his focus on the emerging tech may have come at the expense of his traditional role in promoting UN peacekeeping efforts, Forti said. — Max Saltman, CNN Money, 21 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

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Cite this Entry

“Peacekeeping.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/peacekeeping. Accessed 7 Oct. 2026.

Kids Definition

peacekeeping

noun
: the enforcing of a truce between countries or groups by an international military force
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