The German Communist Party's response to the rise of the Nazis was conditioned by its complicated political environment which included the influence of Soviet foreign policy requirements, the party's Marxist-Leninist outlook, its organizational structure and the democratic society of Weimar. Relying on the Communist press and theoretical journals, documentary collections drawn from several German archives, as well as interview material, and Nazi, Communist opposition and Social Democratic sources, this study traces the development of the KPD's tactical orientation towards the Nazis for the period 1923-1933. In so doing it complements the existing literature both by its extension of the chronological scope of enquiry and by its attention to the tactical requirements of the relationship as viewed from the perspective of the KPD. It concludes that for the whole of the period, KPD tactics were ambiguous and reflected the tensions between the various competing factors which shaped the party's policies.