The concept of sovereignty relates to national governance in that it asserts the authority of a state to govern itself without external interference. It embodies the principle that a nation has the right to determine its own laws, conduct foreign relations, and maintain independence. Sovereignty is foundational for establishing a state's legitimacy and is often defended against external pressures. It is essential in understanding international law and the recognition of states in the global arena, as well as the balance between state authority and the rights of individuals within its jurisdiction.