Nationalism is a political ideology that emphasizes the collective identity, unity, and interests of a specific nation or group of people. It often involves a strong sense of pride and loyalty towards one's nation, as well as a desire for self-determination and independence. Nationalism can manifest in various forms, including cultural, ethnic, civic, and territorial nationalism. It has played a significant role in shaping modern nations, politics, and societies, but has also been associated with conflicts, discrimination, and exclusion of minority groups. Research on nationalism focuses on understanding its origins, effects, and implications for society, politics, and international relations.