Some political scientists distinguish between two types of power: Hard and Soft. The former is coercive while the latter is attractive.
Hard power refers to coercive tactics: the threat or use of armed forces, economic pressure or sanctions, assassination and subterfuge, or other forms of intimidation. Hard power is generally associated to the stronger of nations, as the ability to change the domestic affairs of other nations through military threats. Realists and neorealists, such as John Mearsheimer, are advocates of the use of such power for the balancing of the international system.
Joseph Nye is the leading proponent and theorist of soft power. Instruments of soft power include debates on cultural values, dialogues on ideology, the attempt to influence through good example, and the appeal to commonly accepted human values. Means of exercising soft power include diplomacy, dissemination of information, analysis, propaganda, and cultural programming to achieve political ends.
Others have synthesized soft and hard power, including through the field of smart power. This is often a call to use a holistic spectrum of statecraft tools, ranging from soft to hard.