National sovereignty holds immense importance in international politics as it defines a country's authority to govern itself without external interference. It encompasses the concepts of territorial integrity, political autonomy, and the protection of cultural identity. Issues like trade agreements, military interventions, and diplomatic relations are often influenced by how nations perceive their sovereignty. A strong emphasis on sovereignty allows countries to prioritize their national interests, sometimes leading to conflicts with larger global initiatives like climate change or human rights advocacy. Ultimately, national sovereignty shapes the interactions between states and is a fundamental principle guiding international relations.