 A year later he was sent to the Comintern school near Ufa.Some of his teachers and fellow students there were to be found in leading positions after 1945, such as Paul Wandel, Heinz Hoffmann and Markus Wolf in the GDR and Jakub Berman in Poland.The eldest son of Yugoslav partisan leader Josip Broz Tito, Zarko, also attended the Comintern school at the time.