and promulgation of the Constitutional Charter of Serbia and Montenegro by the Assembly of the Federal Republic of Yugoslavia.
On the basis of a referendum held on 21 May 2006, Montenegro declared itself independent from Serbia on 3 June 2006. In a letter dated on the same day, the President of Serbia informed the United Nations Secretary-General that the membership of Serbia and Montenegro in the UN was being continued by Serbia, following Montenegro's declaration of independence, in accordance with the Constitutional Charter of Serbia and Montenegro. Montenegro was admitted to the UN on 28 June 2006.
In the aftermath of the Kosovo War, the territory of Kosovo, an autonomous province of Serbia, was put under the interim administration of the United Nations Mission in Kosovo on 10 June 1999. On 17 February 2008, the Republic of Kosovo declared its independence, but this has not been recognized by Serbia. Kosovo is not a member of the UN, but is a member of the International Monetary Fund and the World Bank Group, both specialized agencies in the United Nations System. Kosovo is recognised by 85 UN member states, including three of the five permanent members of the United Nations Security Council (France, the United Kingdom, and the United States), while the other two—China and Russia—do not recognize Kosovo. On 22 July 2010, the International Court of Justice, the primary judicial organ of the UN, issued an advisory opinion, ruling that Kosovo's declaration of independence was not in violation of international law.
Tanganyika and Zanzibar
Tanganyika was admitted to the UN on 14 December 1961, and Zanzibar was admitted to the UN on 16 December 1963. Following the ratification on 26 April 1964 of the Articles of Union between Tanganyika and Zanzibar, the two states merged to form the United Republic of Tanganyika and Zanzibar, which continued as a single member, with its name changed to the United Republic of Tanzania on 1 November 1964.
Union of Soviet Socialist Republics
The Union of Soviet Socialist Republics (USSR) joined the UN as an original member on 24 October 1945, and as set out by the United Nations Charter, Chapter V, Article 23, became one of the five permanent members of the United Nations Security Council. Upon the imminent dissolution of the USSR, in a letter dated 24 December 1991, Boris Yeltsin, the President of the Russian Federation, informed the United Nations Secretary-General that the membership of the USSR in the Security Council and all other UN organs was being continued by the Russian Federation with the support of the 11 member countries of the Commonwealth of Independent States.
The other fourteen independent states established from the former Soviet Republics were all admitted to the UN:
- The Byelorussian Soviet Socialist Republic and the Ukrainian Soviet Socialist Republic joined the UN as original members on 24 October 1945, together with the USSR. After declaring independence, the Ukrainian Soviet Socialist Republic changed its name to Ukraine on 24 August 1991, and on 19 September 1991, the Byelorussian Soviet Socialist Republic informed the UN that it had changed its name to Belarus.
- Estonia, Latvia, and Lithuania were admitted to the UN on 17 September 1991, after regaining independence before the dissolution of the USSR.
- Armenia, Azerbaijan, Kazakhstan, Kyrgyzstan, the Republic of Moldova, Tajikistan, Turkmenistan, and Uzbekistan were admitted to the UN on 2 March 1992.
- Georgia was admitted to the UN on 31 July 1992.
United Arab Republic
Both Egypt and Syria joined the UN as original members on 24 October 1945. Following a plebiscite on 21 February 1958, the United Arab Republic was established by a union of Egypt and Syria and continued as a single member. On 13 October 1961, Syria, having resumed its status as an independent state, resumed its separate membership in the UN. Egypt continued as a UN member under the name of the United Arab Republic, until it reverted to its original name on 2 September 1971. Syria changed its name to the Syrian Arab Republic on 14 September 1971.