According to the document, without government there would be chaos and conflict as Thomas Hobbes argued. The document then provides information about the definition and functions of government, including keeping order, passing laws, providing services, and providing security. It discusses the philosophical foundations of the US government based on ideas from John Locke, Montesquieu, and social contract theory. Finally, it summarizes that the US has a representative democracy with power separated among different levels of federal, state, and local government.