The concept of nationalism influences state behavior by fostering a sense of unity and identity among a nation’s citizens. It can drive countries to prioritize national interests, often leading to the pursuit of sovereignty and self-determination. Nationalism may encourage policies aimed at cultural preservation, economic independence, or political autonomy. While it can promote social cohesion and pride, extreme nationalism may result in isolationism or conflict with other nations. Ultimately, nationalism shapes foreign and domestic policy directions and can significantly impact international relations and global dynamics.