The concept of nationalism influences politics by fostering a sense of identity and unity among a group of people, often based on shared culture, language, or history. This sentiment can drive political movements, advocating for independence or greater self-determination. Nationalism also affects how citizens perceive their government and its policies, impacting domestic and foreign affairs. While it can strengthen national cohesion, it may also lead to exclusionary attitudes towards minorities or foreign nations. In extreme cases, nationalism can contribute to conflict or instability, challenging the balance between national interests and global cooperation.