Unitary state
A unitary state, as the name suggests, is a state where all governmental power granted through the constitution or other government charter is vested in a single government for that state. This is in contrast to a federation, where the constitution or other charter gives irrevocable powers to lower governments. This does not mean that unitary states do not have lesser governments or administrative divisions, just that these lesser governments are devolved and that their powers can be revoked by a general decision of the larger government, rather than requiring a constitutional amendment. For example, Swilatia was divided into fifteen provinces, although not by the constitution, until the passing of the Unification Act of 2000, which stripped all provincial governments of their power. Unitary states where some power in such a manner are also referred to as devolved states.
