The definition of peacekeeping is the behavior of trying to prevent fighting, especially of trying to prevent war between nations.(adjective)
When a person is given the responsibility to keep two groups from fighting, this is an example of a peacekeeping mission.
Peacekeeping is the process of maintaining peace.(noun)
When the U.S. tries to broker a deal to keep Israel and Pakistan from going to war with each other, this is an example of peacekeeping.
See peacekeeping in Webster's New World College Dictionary
See peacekeeping in American Heritage Dictionary 4
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