A national government is the central authority that governs a country. It is responsible for creating and enforcing laws, managing public services, and representing the nation in international affairs. The national government typically consists of three branches: the executive, which implements laws; the legislative, which makes laws; and the judicial, which interprets laws. National governments can vary in structure and function, depending on the country's political system. For example, some countries have a parliamentary system, while others have a presidential system. Regardless of the structure, the primary goal of a national government is to maintain order, provide services, and protect the rights of its citizens.