The executive branch of government serves several primary functions, including implementing laws, managing national affairs, and representing the state in foreign relations. It is headed by a president or prime minister, depending on the country's system. The executive formulates and enforces policies, oversees government agencies, and ensures the efficient operation of public services. Additionally, it plays a key role in initiating legislation and budget proposals, as well as executing decisions made by the legislative branch. Through these functions, the executive branch significantly influences the direction and priorities of government.