History of the United States (1980–1991) which the nations of the world, East and West, North and South, can prosper and live in harmony." Nationalist agitation in the Baltic States for independence led to first Lithuania and then the other two states, Estonia and Latvia, declaring independence from the Soviet Union. On December 26, 1991, the USSR was officially disbanded, breaking up into fifteen constituent parts. The Cold War was over, and the vacuum left by the collapse of governments such as in Yugoslavia and Somalia revealed or reopened other animosities concealed by decades of authoritarian rule. While there was a certain reluctance among the U.S.
Russia and the United Nations collapsed in late 1991. Eleven of the twelve members of the Commonwealth of Independent States signed a declaration on December 21, 1991, agreeing that "Member states of the Commonwealth support Russia in taking over the USSR membership in the UN, including permanent membership in the Security Council." One day before the resignation of Soviet President Mikhail Gorbachev, Ambassador Y. Vorontsov transmitted to the UN Secretary-General Javier Pérez de Cuéllar a letter from President of the Russian Federation Boris Yeltsin stating that: The Secretary-General circulated the request among the UN membership. There being no objection, the Russian Federation took the USSR's