Although several Eastern Bloc countries had attempted some abortive, limited economic and political reform since the 1950s (e.g., the Hungarian Revolution of 1956 and Prague Spring of 1968), the ascension of reform-minded Soviet leader Mikhail Gorbachev in 1985 signaled the trend toward greater liberalization. During the mid-1980s, a younger generation of Soviet apparatchiks, led by Gorbachev, began advocating fundamental reform in order to reverse years of Brezhnev stagnation. After decades of growth, the Soviet Union was now facing a period of severe economic decline and needed Western technology and credits to make up for its increasing backwardness. The costs of maintaining its military, the KGB, and subsidies to foreign client states further strained the moribund Soviet economy.