Diplomatic recognition in international law is a unilateral declarative political act of a state that acknowledges an act or status of another state or government in control of a state (may be also a recognized state). Recognition can be accorded either on a de facto or de jure basis. Partial recognition can occur if many sovereign states refuse to recognize an entity as a peer. Recognition can be a declaration to that effect by the recognizing government or may be implied from an act of recognition, such as entering into a treaty with the other state or making a state visit. Recognition may, but need not, have domestic and international legal consequences. If sufficient countries recognize a particular entity as a state, that state may have a right to membership in international organizations, while treaties may require all existing member countries unanimously agreeing to the admission of a new member.
A vote by a country in the United Nations in favour of the membership of another country is an implicit recognition of that country by the country so voting, as only states may be members of the UN. On the other hand, a negative vote for UN membership does not necessarily mean non-recognition of the applicant as a state, as other criteria, requirements or special circumstances may be considered relevant for UN membership. Similarly, a country may choose not to apply for UN membership for its own reasons, as is the case with Vatican City, and Switzerland was not a member until 2002 because of its concerns to maintain its neutrality policy.
