A Confederation (also known as confederacy, alliance or league) is an alliance of sovereign star polities that unified for special purposes. Confederation's members - which are interstellar and non-interstellar - could be seen as more organized than anarchy, but more freedom than federation or republic. Purposes in which a confederation is made can be vary, but normally including: * Mutual defence against a larger, encroaching state. * Establishment of a larger economic sphere (market). * Reasons of cultural, ethnic, social, or racial solidarity.