(Shigenobu leap July), September 12, 1968, Albania announced formally withdraw from the Warsaw Treaty Organization.

Warsaw Treaty Organization (Warsaw Pact Organization, or WTO) is a political and military alliance set up to fight the North Atlantic Treaty Organization (NATO). The Federal Republic of Germany (West Germany) in 1955 to join NATO and the European socialist bloc countries (including the German Democratic Republic, or East Germany) signed the Warsaw Convention, the treaty is drafted former Soviet leader Nikita Khrushchev, 1955 February 14 signed in the Polish capital, Warsaw, the socialist countries of Eastern Europe outside Yugoslavia, all joined the WTO organization. It played an important role for to defend socialism own security against imperialist aggression, safeguard world peace and promote national liberation movement.
States members of the organization have insurance, the Czech Republic, the German Democratic Republic (September 24, 1990 formally withdraw from the Warsaw Pact Organization), Hungary, wave, Romania, the Soviet Union, (history TodayOnHistory.com) Albania (September 1968 announced its withdrawal from the Warsaw Pact Organization on 12 May). In 1991, February 25, 2010 special meeting held in Budapest, Warsaw Pact Political Consultative Committee, WTO member countries (Bulgaria, Poland, the Czech Republic and Slovakia, Romania, (lsjt.net), Hungary, the Soviet Union) behalf of their respective foreign and defense ministers signed a protocol to announce all of the Warsaw Treaty Organization military institutions from April 1, 1991, all dissolved and cease all military action at the same time. July 1, 1991, the Contracting Parties to the Warsaw Pact Political Consultative Committee meeting held in Prague, the national leaders signed the Protocol on the Warsaw Pact ceased to have effect and meeting communique to this formal disintegration of the Warsaw Pact. (History TodayOnHistory.com)