KGB to find them at home. In 1967, the campaign of this suppression increased under new KGB Chairman Yuri Andropov. After suppressing the Prague Spring, KGB Chairman Andropov established the Fifth Directorate to monitor dissension and eliminate dissenters. He was especially concerned with Aleksandr Solzhenitsyn and Andrei Sakharov, "Public Enemy Number One". Andropov failed to expel Solzhenitsyn before 1974; but did internally exile Sakharov to Gorky in 1980. The KGB failed to prevent Sakharov's collecting his Nobel Peace Prize in 1975, but did prevent Yuri Orlov collecting his Nobel Prize in 1978; Chairman Andropov supervised both operations. KGB dissident-group infiltration featured
KGB Security Troops in the Kremlin and key government-party buildings and officials at the republic and regional levels, counter-insurgency and counter-terrorist operations, and direct action in foreign countries. Such troops were presumably under the Ninth Directorate of the KGB. The Security Troops also included several units of signal troops, which were reportedly responsible for installation, maintenance, and operation of secret communications facilities for leading party and government bodies, including the Ministry of Defense. These troops were probably under the command of the Eighth Chief Directorate. The security were controlled by the Ninth Chief Directorate (Guards and KGB Protection Service), the Eighth Chief Directorate