The paper examines how the radical right parties´ leaders work with emotions while addressing their voters and sympathizers on Twitter/X social media. We focus on the “supply side” on the level of leaders´ discourses. The goal is to demonstrate how they work with emotions, especially those of fear and anger. The context represents Russian aggression against Ukraine, because, typically, circumstances of a crisis bolster the ability of radical right leaders to use emotional rhetoric devices. Czechia, Hungary, and Slovakia represent three particularly relevant and distinctive cases among the CEE countries according to the relevance, relative strength, and stability of radical right parties. We examined social media, particularly Twitter, since it is one of the most prominent tools of political communication today, especially for populists. We collected the data of all Tweets between February 24, 2022 and February 24, 2023. We combined a systematic quantitative content analysis with a more in-depth qualitative analysis of the key characteristics of the discursive construction of the two most salient emotions: anger and fear. We did not confirm the assumption that they would utilise the war in Ukraine since most tweets addressed issues related to domestic politics. The research, however, confirmed that despite differences, anger and fear play a substantial role in the emotional repertoire and represent necessary rhetorical devices. Our findings concur with the literature on radical right populism and its employment of emotional discourse. We found that even a crisis in international politics has been reframed primarily as a domestic issue and integrated into classical discursive practices.