1. federation of states; confederation of nations
Wikipedia definition
2. ConfederationA confederation in modern political terms is a permanent union of political units for common action in relation to other units. Usually created by treaty but often later adopting a common constitution, confederations tend to be established for dealing with critical issues such as defense, foreign affairs or a common currency, with the central government being required to provide support for all members.
Read “Confederation” on English Wikipedia
Read “国家連合” on Japanese Wikipedia
Read “Confederation” on DBpedia


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