What term is the idea that the whole country is fighting, supporting and mixing nationalism

Nationalism is an idea and movement that promotes the interests of a particular nation (as in a group of people), especially with the aim of gaining and maintaining the nation's sovereignty (self-governance) over its homeland. Nationalism holds that each nation should govern itself, free from outside interference (self-determination), that a nation is a natural and ideal basis for a polity  and that the nation is the only rightful source of political power (popular sovereignty)

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answer; genetics;