To understand what happened in the psychoanalytic world in Holland during the German occupation (1940-1945) we must have knowledge of the conflicts within the Dutch Society of Psychoanalysis in the nineteen-thirties. Those conflicts mainly deal with the subject of lay analysis, the compulsory training analysis and in general if compliance with foreign, with IPA rules was advisable. These differences of opinion reached their peak when four Jewish psychoanalysts arrived from Germany in 1933. The Dutch Society broke up in two parts, but was reunited in 1938. During the German occupation the training was finally regulated according to the IPA rules. This lead to a new splitting in the world of Dutch psychoanalysis that has not been healed to date.