In protracted conflicts the enemy is increasingly seen as less human, such that their common humanity does not readily trigger natural inhibitions against violence. This involves "essentializing" both the self and enemies as respectively good and evil entities. The Islamist use of Takfirism, or (apostasy), to justify the murder of non-radical Muslims and nonbelievers ("kafir": "pagans") is an example of this. Hannah Arendt, in The Origins of Totalitarianism outlines a similar dynamic that contributed to the ideologies of pan-slavism, Nazism, and antisemitism, where an in-group constructs an exalted self identity for political purposes and mobilizes against out-groups in order to solidify that identity. This dynamic of hatred is not unique to rightist groups. The Weathermen and Red Army Faction often characterized police officers and government officials as “pigs” worthy of death and subhuman treatment.