Our study is qualitative research. It is a content analysis of more than 2,500 European and American posters of war propaganda identifying modern principles of persuasion and forms of discourse. The analysis of the themes demonstrates that the techniques used one hundred years ago to convince civilians to enlist had enormous potential for development to such a degree that they were adopted by modern political and commercial persuasion. Therefore, we can consider the propagandists of the Great War as modern spin doctors. The idea evolved after reading Propaganda (1928) by Edward Bernays, the nephew of Sigmund Freud. This is an astonishing book; it provides illuminating interpretations both for understanding of war propaganda – not just for t...