The concept of sovereignty in international relations refers to the authority of a state to govern itself without external interference. It indicates a state's capacity to make legal decisions, control its territory, and engage in diplomatic relationships. Sovereignty is crucial for maintaining order and stability in the international system, as it establishes the principles of non-interference and respect for territorial integrity. Additionally, with globalization, the interpretation and application of sovereignty can be complex, as states may cooperate on various issues while still asserting their autonomy.