Nationalism has profound implications in global politics, influencing the relationships between states. It can foster a sense of unity and identity within a nation, but it also risks creating division between countries, especially in the context of migration and trade. Nationalist movements can lead to the rise of populist leaders, who may prioritize national interest over international cooperation. This can result in tensions, conflicts, or even isolationism, which challenge established diplomatic norms and multilateral agreements. The balancing act between promoting national pride and engaging in global cooperation is essential for maintaining stability and peace in international relations.