Nationalism can create problems when it is used to justify or promote exclusionary or discriminatory practices. For example, in some countries nationalist sentiments have led to the marginalization of minority groups and the promotion of ethnic or religious superiority. Furthermore, when nationalism is used to create divisions between countries, it can lead to increased tensions and the potential for armed conflict. As a result, it is important for nations to ensure that nationalist sentiment does not lead to discrimination, violence, or international conflict.