Political ideologies profoundly influence international relations by shaping leaders' worldviews and policy decisions. Ideologies, such as liberalism, realism, or constructivism, provide frameworks for understanding state behavior, interactions, and global issues. Liberalism emphasizes cooperation and international institutions, while realism focuses on power and national interests. Constructivism highlights the role of ideas and identity in shaping state actions. These ideologies guide diplomatic strategies, conflict resolution, and engagement with multilateral organizations, ultimately affecting how nations navigate and respond to global challenges.