The artistic work of George Grosz and John Heartfield was shaped by the struggle against German fascism. Both artists made it their mission to educate the German people about National Socialism through their artwork. Even in the time of the Weimar Republic, Grosz and Heartfield recognized the Ideology and the plans of the rising fascistic politicians and their supporters. With works such as "The Pillars of Society" by George Grosz and "Million Montage" by John Heartfield, both artists gained the attention of the German population for themselves and their concerns. In addition, however, their anti-fascist works also attracted the hatred of the Nazis, by which Grosz and Heartfield brought themselves in danger. Ultimately, both agitators were forced to leave Germany in order to avoid a severe punishment from the fascist rulers in the Third Reich. At this point in their lives, the artistic paths of both Grosz and Heartfield separated. Heartfield worked harder than ever in his self-chosen exile, in Czechoslovakia, to struggle against German fascism, which forced him in 1939 to escape a second time from the National Socialists. Grosz however lost his faith in the fomenting effect of his artistic work and tried to forget the atrocities of the Nazi government. This present paper demonstrates the artistic development and work of George Grosz and John Heartfield, their motivation to act against Nazism, and the consequences of their political agitation brought upon them.