Constructivism in International Relations challenges traditional theories by emphasizing the role of ideas, norms, and identities in shaping global politics. This approach argues that the international system is socially constructed through interactions, highlighting how shared understandings and beliefs can change over time. Key thinkers like Nicholas Onuf and Alexander Wendt developed constructivism in response to the limitations of realism and liberalism. The theory focuses on how language, culture, and social practices influence state behavior, offering a unique perspective on how the world of international relations is created and maintained.