Power can be defined as the ability to carry out one's will and exercise control over others. There are different forms and sources of power, including coercive power through threats or force, reward power by providing benefits, expert power based on knowledge/skills, legitimate power from one's position or role, and referent power from personality and attracting followers. Governments derive political power from the sovereignty of the people, and legitimacy comes from laws, customs, and traditions accepted by society. A government exercises power through tools like police power, eminent domain, taxation, military capabilities, economic influence, and psychological means. Citizenship is tied to power, as citizens enjoy rights that allow them to participate in democracy and exercise power, along with