Communist Party of the Soviet Union reinvigorated the party ideology by adding new concepts and updating older ones. A positive consequence of this was the allowance of "pluralism of thought" and a call for the establishment of "socialist pluralism" (literally, socialist democracy). He introduced a policy of "glasnost" (Russian: "openness", "transparency") in 1986, which led to a wave of unintended democratization. According to Russian scholar Archie Brown, the democratization of the Soviet Union brought mixed blessings to Gorbachev; it helped him to weaken his conservative opponents within the party but brought out accumulated grievances which had been oppressed during the previous decades. In reaction to these
History of the Soviet Union the political ouster of Nikita Khrushchev (1964), the national politics were dominated by the Cold War; the ideological U.S.–USSR struggle for the planetary domination of their respective socio–economic systems, and the defense of hegemonic spheres of influence. Nonetheless, since the mid-1950s, despite the Communist Party of the Soviet Union (CPSU) having disowned Stalinism, the political culture of Stalinism—an omnipotent General Secretary, anti-Trotskyism, a five-year planned economy (post-New Economic Policy), and repudiation of the Molotov–Ribbentrop Pact secret protocols—remained the character of Soviet society until the accession of Mikhail Gorbachev as leader of the CPSU in 1985. The history of the Soviet