Authoritatively
131World war — A world war is a war affecting the majority of the world s most powerful and populous nations. World wars have spanned several continents, and lasted for many years. History has shown that as a world war progresses, involved nations devote more… …
132Failed state — A failed state is a state whose central government is so weak or ineffective that it has little practical control over much of its territory. The level of control required to avoid being considered a failed state varies considerably amongst… …
