Editing Nation state (section)

== Irredentism ==
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[[File:Nazi Germany.svg|thumb|left|The Greater German Reich under [[Nazi Germany]] in 1943]]

In principle, the border of a nation state would extend far enough to include all the members of the nation, and all of the national [[homeland]]. Again, in practice, some of them always live on the 'wrong side' of the border. Part of the national homeland may be there too, and it may be governed by the 'wrong' nation. The response to the non-inclusion of territory and population may take the form of irredentism: demands to annex ''unredeemed'' territory and incorporate it into the nation state.

Irredentist claims are usually based on the fact that an identifiable part of the national group lives across the border. However, they can include claims to territory where no members of that nation live at present, because they lived there in the past, the national language is spoken in that region, the national culture has influenced it, geographical unity with the existing territory, or a wide variety of other reasons. Past grievances are usually involved and can cause [[revanchism]].

It is sometimes difficult to distinguish irredentism from [[pan-nationalism]], since both claim that all members of an ethnic and cultural nation belong in one specific state. Pan-nationalism is less likely to specify the nation ethnically. For instance, variants of [[Pan-Germanism]] have different ideas about what constituted [[Kleindeutschland and Großdeutschland|Greater Germany]], including the confusing term ''Grossdeutschland'', which, in fact, implied the inclusion of huge [[Slav]]ic minorities from the [[Austro-Hungarian Empire]].

Typically, irredentist demands are at first made by members of non-state nationalist movements. When they are adopted by a state, they typically result in tensions, and actual attempts at annexation are always considered a ''[[casus belli]]'', a cause for [[war]]. In many cases, such claims result in long-term hostile relations between neighbouring states. Irredentist movements typically circulate maps of the claimed national territory, the ''greater'' nation state. That territory, which is often much larger than the existing state, plays a central role in their propaganda.

Irredentism should not be confused with claims to overseas colonies, which are not generally considered part of the national homeland. Some French overseas colonies would be an exception: [[French rule in Algeria]] unsuccessfully treated the colony as a ''[[Département in France|département]]'' of France.