Question

what is nationalism
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Answer 1

Answer:

identification with one's own nation and support for its interests, especially to the exclusion or detriment of the interests of other nations.

Explanation:

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Answer 2

Answer:

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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.