Abstract. An alarming trend observed in the 2010s was the growth of ultra-right terrorism in Western countries. Being a highly heterogeneous phenomenon, extreme right-wing extremism is fueled by crises of the socio-economic and spiritual order in Western societies. A feature of the development of this phenomenon in the last decade is the assertion by supporters of ultra-right extremist ideas about themselves as a “shield” protecting the West not only from the “invasion” of alien migrants, but also from the danger of Islamist terrorism. The reorientation of right-wing extremists towards “anti-jihadism” can be partly explained by the desire to arrange a “restyling” of the ultra-right movements in order to give them not only the appearance of greater moderation, but also in a sense to legitimize their attitudes as a force opposing Islamist terrorists. However, an analysis of the theory and practice of extreme right-wing terrorists demonstrates similarities with terrorism of the “jihadist” kind in many respects. Militant Islamists and far-right extremists alike deny tolerance, rely on violence, spread hatred and mistrust. Both those and other terrorists use a similar “hate speech”. In a sense, “jihadists” and ultra-right extremists are necessary for each other, because each side finds a different explanation and justification for its own crimes in actions. The crisis phenomena generated by the global pandemic of a new type of coronavirus in 2020 not only contributed to the activation of propaganda by supporters of ultra-right ideas, but created objective conditions for these ideas to resonate with some Westerners. Accordingly, this poses a severe threat of both expanding the social base of ultra-right movements and the implementation of new acts of violence.