Islamic traditions. In the late 1980s, the liberalized atmosphere of the Soviet Union under Mikhail Gorbachev (in power 1985–91) fostered political opposition groups and open (albeit limited) opposition to Soviet policy in Uzbekistan. In 1989 a series of violent ethnic clashes involving Uzbeks brought the appointment of ethnic Uzbek outsider Islam Karimov as Communist Party chief. When the Supreme Soviet of Uzbekistan reluctantly approved independence from the Soviet Union in 1991, Karimov became president of the Republic of Uzbekistan. During the decade following the death of Rashidov, Moscow attempted to regain the central control over Uzbekistan that had weakened in the previous decade. In 1986 it was announced that almost the entire party and government leadership of the republic had conspired in falsifying cotton production figures. Eventually, Rashidov himself was also implicated (posthumously) together with Yuri Churbanov, Brezhnev's son-in-law. A massive purge of the Uzbek leadership was carried out, and corruption trials were conducted by prosecutors brought in from Moscow. In the Soviet Union, Uzbekistan became synonymous with corruption. The Uzbeks themselves felt that the central government had singled them out unfairly; in the 1980s, this resentment led to a strengthening of Uzbek nationalism. Moscow's policies in Uzbekistan, such as the strong emphasis on cotton and attempts to uproot Islamic tradition, then came under increasing criticism in Tashkent. In 1989 ethnic animosities came to a head in the Fergana Valley, where local Meskhetian Turks were assaulted by Uzbeks, and in 1990 in the Kyrgyz city of Osh Uzbek and Kyrgyz youth clashed. Moscow's response to this violence was a reduction of the purges and the appointment of Islam Karimov as first secretary of the Communist Party of Uzbekistan. The appointment of Karimov, who was not a member of the local party elite, signified that Moscow wanted to lessen tensions by appointing an outsider who had not been involved in the purges. Resentment among Uzbeks continued to smolder, however, in the liberalized atmosphere of Soviet leader Mikhail Gorbachev's policies of perestroika and glasnost. With the emergence of new opportunities to express dissent, Uzbeks expressed their grievances over the cotton scandal, the purges, and other long-unspoken resentments. These included the environmental situation in the republic, recently exposed as a catastrophe as a result of the long emphasis on heavy industry and a relentless pursuit of cotton. Other grievances included discrimination and persecution experienced by Uzbek recruits in the Soviet army and the