Mikhail Gorbachev major campaign to limit alcohol consumption, which Gorbachev—who believed it would improve health and work efficiency—oversaw. His wife keenly supported the measure. As a result, crime rates fell and life expectancy grew slightly between 1986 and 1987. The reform had significant costs to the Soviet economy, resulting in losses of up to $100 billion between 1985 and 1990. Gorbachev later considered the campaign to have been an error. In April 1986 the Chernobyl disaster occurred; in the immediate aftermath, officials fed Gorbachev incorrect information to downplay the incident. As the scale of the disaster became apparent, 336,000 people were evacuated
Mikhail Gorbachev In December 1979, the Soviets sent their Red Army into neighbouring Afghanistan to support the Soviet-aligned government against Islamist insurgents; Gorbachev privately thought it a mistake. However, at times he openly supported the government position; he supported Soviet calls for the Polish Marxist–Leninist government to crack down on growing internal dissent in Poland in October 1980. After Brezhnev's death in November 1982, Andropov succeeded him as General Secretary of the Communist Party, the "de facto" head of government in the Soviet Union. Gorbachev was enthusiastic about the appointment. However, although Gorbachev hoped that Andropov would introduce liberalising reforms, the latter