Before Mr. Wolf there had been his friend -- and Mr. Gorbachev 's mentor -- Yuri Andropov , a longtime K.G.B. chief whose brief tenure at the helm of the Soviet Union was marked by a campaign against corruption , alcoholism , absenteeism and inefficiency .
Yuri Andropov
Soviet Union
/people/person/nationality
PERSON
Wolf
PERSON
Yuri Andropov
LOCATION
Soviet Union