A great power is a sovereign state that is recognized as having the ability and expertise to exert its influence on a global scale. Great powers characteristically possess military and economic strength, as well as diplomatic and soft power influence, which may cause middle or small powers to consider the great powers' opinions before taking actions of their own. International relations theorists have posited that great power status can be characterized into power capabilities, spatial aspects, and status dimensions.
While some nations are widely considered to be great powers, there is considerable debate on the exact criteria for great power status. Historically, great powers have been formally recognized as members of organizations such as the Congress of Vienna of 1814–1815 or the United Nations Security Council, of which the permanent members are China, France, Russia, the United Kingdom, and the United States. The United Nations Security Council, NATO Quint, the G7, BRICS, and the Contact Group have all been described as great power concerts.