Categories:Wikipedia articles incorporating a citation from the New International Encyclopedia,
All articles that may contain original research,
Constitutional state types,
Union of sovereign states linked by treaties, whose common government does not directly exercise its sovereignty over their territory
State consisting of a union of partially self-governing states or territories, united by a central government that exercizes directly on them its sovereign power
A system in which a country or nation formed by a union or confederation of independent states is governed by a central authority or organization.
An array of nations or states that are unified under one central authority which is elected by its members.
A state where the sovereign constituent units delegate their authority to the centre. As opposed to a federation, where the central and regional governments are each equal and sovereign in their own sphere.
A union or alliance of states or political organizations.