Why did russia have a different experience with nationalist fervor than its European neighbors?

Russian nationalism tends to expand the country territorially.

Explanation:

While nationalism in most European countries is focused within the borders of a particular country, Russian nationalists tend to expand boundaries. Nationalism has many definitions, the most widespread being that it is a group of people in a specific area who nurtures certain political ideals, shares a shared history and tradition. Nationalism, in its broader definition, does not always have to have radical tendencies, but it can. Russian nationalism strives for imperialism and for establishing dominance over other Slavic peoples. This fact makes Russian nationalism much more dangerous. To this end, we can cite more examples throughout history, but now we will mention one that did not happen so long ago. Namely, during the 2015 Crimean crisis, many countries accused the Russian government of organizing Russian nationalists to do "dirty jobs" during the crisis in Ukraine. To this end, many paramilitary formations were formed, and part of the territory to which it had a legitimate right was forcibly seized from Russia.

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