What is nationalism and imperialism

Nationalism is a political ideology that emphasizes a nation's identity, unity, and interests, often to the exclusion or detriment of the interests of other nations. It typically involves a strong sense of pride in one's country and a belief in its unique destiny or superiority.

Imperialism is a policy or ideology of extending a country's rule over foreign nations, often by military force or by gaining political and economic control of other territories. It involves the expansion of a nation's power and influence through colonization, use of military force, or other means.