How successful was the united nations, the world peacekeeping body established after world war ii?

The United Nations has enjoyed considerable successThe United Nations is recognized as an international arbiter and has been called to various conflict areas to maintain peace. The United Nations has also successfully resolved a number of border disputes, promoted the self determination of various countries such as South Sudan as well as defended human rights in various countries.

Quite successful

The united nations has favored well in maintaining peace in various areas it has been called to. it has resolved numerous border disputes, served as an arbiter in several instances, promoted the self determination of various people, and rose against human rights abuses in several countries.