Schmitt's "Concept of the Political" is one of the most famous as well as notorious books of political theory. The so-called "Crown-Attorney of the Third Reich" (Gurian) develops in this brief Essay the idea, that the Concept of the Political is the differentiation between foe and friend. States should classify people as well as other states as friend or foe, because only this asures homogenity (in innerstate matters) and security (in foreign policies). Allthough this radical alternative has often been misunderstood (Schmitt does not say, that politics always operates in this binary mode), Schmitt is fascinated by the ideology of Mussolini as well as Hitler and the NSdAP. Vice versa, the Nazis showed interests in the international lawyer: His homogenity-desiderate corresponded with their plans to exterminate "Jews". With Schmitts "Concept of the Political" these extermination-ideas were based to a "philosophical background". That led critical scholars to characterize this book as a "political, not philosophical existentialism".