the maintenance of international peace and security by the deployment of military forces in a particular area: the United Nations' efforts toward peacekeeping.
2.
an instance of this.
–adjective
3.
for or pertaining to peacekeeping: peacekeeping forces.
peace·keep·ing (pēs'kē'pĭng) adj. Of or relating to the preservation of peace, especially the supervision by international forces of a truce between hostile nations. peace'keep'ing n.