bild

Czechoslovak Communist party leader Alexander Dubcek, left, shares a laugh with Soviet Communist party chief Leonid Brezhnev, second from right, at the conference of leaders from the Soviet Union, East Germany, Bulgaria, Hungary, Poland and Czechoslovakia in Bratislava, August 2, 1968. The Bratislava Declaration affirming unshakable fidelity to Marxism-Leninism and proletarian internationalism was signed at the conference. CTK Photo (KEYSTONE/CTK/)