Politics in the British Isles converse of unionism, nationalism, is also an important factor for politics in the Isles. Nationalism can take the form of Welsh nationalism, Cornish nationalism, English nationalism, Irish nationalism, Scottish nationalism, Ulster nationalism or independence movements in the Isle of Man or Channel Islands. Identity is intertwined with politics, especially in the case of nationalism and independence movements. Details on identity formation in the British Isles can be found at Britishness, Scottish identity, Irish people. Pan-Celticism is also a movement which is present in several of the countries which have a Celtic heritage. There are no major political parties that are
Terminology of the British Isles of Celts inhabiting the islands, but this term was not used by the Greeks or Romans for the inhabitants of Britain or Ireland, nor is there any record of the inhabitants of the British Isles referring to themselves as such. Nevertheless, Roman administration later incorporated the province of Britannia into the praetorian prefecture of Gaul, in common with Hispania, which had Celtiberians. Armorica, where the Bretons would settle, was part of "Gallia Celtica", so there were tertiary relations between the Britons and Gallic Celts at least. In addition, the Parisii of Gallia Celtica are thought to have founded Aldborough in