History of socialism under challenge from Solidarność, or Solidarity, a labor union under the leadership of Lech Wałęsa. The union was sufficiently threatening to the government that on 13 December 1981, the head of state, Wojciech Jaruzelski declared martial law, suspended the union, and imprisoned most of its leaders. Mikhail Gorbachev (born 1931), who took control in 1985, was the first Soviet leader to have been born after the October revolution. He is remembered for three initiatives: "glasnost", "perestroika", and the "Frank Sinatra doctrine". "Glasnost", or "openness", was Gorbachev's term for allowing public debate in the Soviet Union to an unprecedented degree. "Perestroika"
Mikhail Gorbachev Ministry of the Interior troops) killed 4 people. Archie Brown suggests that Gorbachev's response this time was better, condemning the rogue action, sending his condolences and suggesting that secession could take place if it went through the procedures outlined in the Soviet constitution. According to Gorbachev's aide, Shakhnazarov, Gorbachev was finally beginning to accept the inevitability of "losing" the Baltic republics, although he would try all political means to preserve the Union. Brown believes that this put him in "imminent danger" of being overthrown by hard-liners opposing secession. Gorbachev continued to work on drafting a new treaty of union which