The Slánský group consisted of many personalities. On one side was Slánský, an extremist and one of those who helped to usher Czechoslovakia into the Stalinist era. At the centre stood Vladimír Clementis (Minister of Foreign Affairs), a Communist and one of the conductors of the February 1948 communist coup, but also a man who had dared to criticize the Molotov–Ribbentrop Pact. On the other extreme of the scale was Margolius. Unlike others in the Slánský group, he joined the Communist Party late – in December 1945 – and acquired faith in socialism as a result of his experience in Adolf Hitler’s concentration camps and never held any Party appointments, he was purely an economist.