Since the end of the Cold War, the role of United Nations (UN) operations in the area of international peace and security has increasingly become a topical issue for the different nations of the world. In particular, the use of force by, and in support of, peacekeeping has raised questions concerning the future role of UN peacekeeping operations in the resolution of international and internal conflict. During the Cold War there were two accepted forms of United Nations operations: peacekeeping and peace-enforcement. Since the end of the Cold War, however, despite increasing difficulties faced by UN peacekeeping operations, no accepted mode of action beyond these two operations has emerged. This has become problematic as the UN has consistently chosen to use peacekeeping forces as its primary tool in its effort to restore peace and security; despite the fact that peacekeeping, in itself, is not always an effective means to achieve these ends.