MONTEVIDEO CONFERENCE

The Montevideo Convention on the Rights and Duties of States was a treaty (which was later accepted as part of customary international law) signed at Montevideo, Uruguay, on December 26, 1933, at the Seventh International Conference of American States.

The convention sets out the definition, rights and duties of statehood. Most well-known is article 1, which sets out the four criteria for statehood that have sometimes been recognized as an accurate statement of customary international law:
The state as a person of international law should possess the following qualifications: (a) a permanent population; (b) a defined territory; (c) government; and (d) capacity to enter into relations with the other states.
Furthermore, the first sentence of article 3 explicitly states that "The political existence of the state is independent of recognition by the other states." This is known as the declarative theory of statehood.
There have also been attempts to further broaden the convention's definition, although they have gained less support. Founders of non-territorial micronations commonly assert that the requirement in the Montevideo Convention of a defined territory is in some way wrong-headed, for largely unspecified reasons. Some non-territorial entities, notably the Sovereign Military Order of Malta, are indeed considered subjects of international law, but these do not aspire to statehood

The states that signed this convention are: Honduras, United States of America, El Salvador, Dominican Republic, Haiti, Argentina, Venezuela, Uruguay, Paraguay, Mexico, Panama, Guatemala, Brazil, Ecuador, Nicaragua, Colombia, Chile, Peru, Cuba[2]. However, as a restatement of customary international law, the Montevideo Convention merely codified existing legal norms and its principles and therefore does not apply merely to the signatories, but to all subjects of international law as a whole.

The European Union, in the principal statement of its Badinter Committee,[4] follows the Montevideo Convention in its definition of a state: by having a territory, a population, and a political authority. The committee also found that the existence of states was a question of fact, while the recognition by other states was purely declaratory and not a determinative factor of statehood.[5]
Switzerland, although not a member of the European Union, adheres to the same principle, stating that "neither a political unit needs to be recognized to become a state, nor does a state have the obligation to recognize another one. At the same time, neither recognition is enough to create a state, nor does its absence abolish it."[6]
Source : Wikipedia