The impact of nationalism on international relations can often lead to increased tension and conflict between nations. While nationalism fosters a sense of unity and pride within a country, it can also result in protectionism, exclusionary practices, and hostility towards other countries. Nationalist sentiments may drive policies promoting national interests at the expense of global cooperation. This dynamic complicates diplomatic engagements and can contribute to geopolitical instability, particularly when multiple nations prioritize self-interest over collaborative approaches to global challenges such as climate change, trade, and security.