What is Self-determination?

Here is a clear text about the right of self-determination, from the website of UNPO. Denying this right is the cause of dozens of armed conflicts around the world.

Essentially, the right to self-determination is the right of a people to determine its own destiny. In particular, the principle allows a people to choose its own political status and to determine its own form of economic, cultural and social development. Exercise of this right can result in a variety of different outcomes ranging from political independence through to full integration within a state. The importance lies in the right of choice, so that the outcome of a people's choice should not affect the existence of the right to make a choice. In practice, however, the possible outcome of an exercise of self-determination will often determine the attitude of governments towards the actual claim by a people or nation. Thus, while claims to cultural autonomy may be more readily recognized by states, claims to independence are more likely to be rejected by them. Nevertheless, the right to self-determination is recognized in international law as a right of process (not of outcome) belonging to peoples and not to states or governments.