the exception of Romania and Afghanistan) overthrew almost all communist governments of the Eastern Bloc. The Communist Party of the Soviet Union itself lost control in the Soviet Union and was banned following an abortive coup attempt in August 1991. This in turn led to the formal dissolution of the USSR in December 1991, the declaration of independence of its constituent republics and the collapse of communist governments across much of Africa and Asia. The United States was left as the world's only superpower. Post-Cold War era 1990s Following the collapse of the Soviet Union, many post-Soviet conflicts took place across its former territory. Secessionist movements fought against their new host governments in the First Nagorno-Karabakh War (1988–1994), Transnistria War(1990–1992), South Ossetia War (1991–1992), War in Abkhazia (1992–1993), and in the First Chechen War (1994–1996). Civil conflicts over power within the new states were fought in Georgia (1991–1993), in Tajikistan (1992–1997), and in Russia in 1993. Czechoslovakia broke apart peacefully in 1993, while the breakup of Yugoslavia starting in 1990 led to the bitter inter-ethnic Yugoslav Wars of the rest of the decade. Following the end of the global competition between real socialism and market democracies, many Third Way politicians emerged. In the United States, a leading proponent of this was 42nd President Bill Clinton, who was in office from 1993 to 2001. In the United Kingdom, Third Way social-democratic proponent Tony Blair claimed that the socialism he advocated was different from traditional conceptions of socialism and said: "My kind of socialism is a set of values based around notions of social justice. [...] Socialism as a rigid form of economic determinism has ended, and rightly". Following German reunification, European integration continued, led by Chancellor of Germany Helmut Kohl and President of France François Mitterrand. On 1 November 1993, the Maastricht Treaty became effective, creating the European Union with its pillar system, formalising European Political Cooperation as the Common Foreign and Security Policy and adding the new area of Justice and Home Affairs. On 1 January 1994 the European Economic Area (EEA) entered into force, allowing European Free Trade Association (EFTA) members Norway and Iceland to enter the Single European Market (created the previous year) without joining the Union. The Schengen Agreement later came into effect on 26 March 1995. Between 7 April and 15 July 1994, during the Rwandan Civil War, the Rwandan genocide occurred. During this period of