Otto Hahn asked Planck to gather well-known German professors in order to issue a public proclamation against the treatment of Jewish professors, but Planck replied, "If you are able to gather today 30 such gentlemen, then tomorrow 150 others will come and speak against it, because they are eager to take over the positions of the others." Under Planck's leadership, the Kaiser Wilhelm Society (KWG) avoided open conflict with the Nazi regime, except concerning the Jewish Fritz Haber. Planck tried to discuss the issue with the recently appointed Chancellor of Germany Adolf Hitler, but was unsuccessful, as to Hitler "the Jews are all Communists, and these are my enemies." In the following year, 1934, Haber died in exile.