The eruption in the 1990s of highly visible humanitarian crises and exceedingly bloody civil wars in the Horn of Africa, imploding Yugoslavia, and Rwanda, set in motion a trend towards third party intervention in communal conflict in areas as far apart as the Balkans and East Timor. However haltingly and selectively, that trend towards extra-systemic means of managing ethnic and national conflict is still discernible, motivated as it was in the 1990s by the inability of in-house accommodation methods to resolve ethno-political conflicts peacefully and the tendency of such conflicts to spill into the international system in the form of massive refugee flows, regional instability, and failed states hosting criminal and terrorist elements. In its various forms, third party intervention has become a fixed part of the current international system.