It was invented by the second Secretary-General, Dag Hammarskjold, and Canadian Foreign Minister Lester Pearson after Britain and France invaded Egypt in the Suez crisis of 1956. Since then, UN peacekeeping forces have been deployed more than 60 times.
具有讽刺意味的是，维和行动并未出现在最初的宪章里。它是由第二任秘书长Dag Hammarskjold和加拿大外交部长Lester Pearson于英法在1956年的苏伊士危机中入侵埃及后所发明的。从那以后，联合国维和部队已经执行了超过60次的任务。