a group of soldiers from several different countries, who are sent by the UN to places where there has been a war, in order to prevent fighting from starting again. They wear light-blue BERET s (= a soft, flat hat) .
especially when international military forces enforce a truce between hostile groups or nationsmilitary the activity of keeping the peace by military forces
especially when international military forces enforce a truce between hostile groups or nationsmilitary the activity of keeping the peace by military forces