The article is a philosophical response to the oped of the German philosopher Jürgen Habermas Krieg und Empörung, published by him in the Süddeutsche Zeitung in April 2022. The oped demonstrates the philosopher’s view on ideological disputes and political debates or “indignation” (Empörung) in public sphere in both Germany and the EU concerning an attempt to develop a unanimous policy to help Ukraine with weapons against Russia’s military aggression. The authors presume that Habermas published the accountable message of a responsible (...) citizen that means it should be also taken as based on his theoretical achievements. The article consists of two parts. The first part sets out the main arguments of the philosopher’s newspaper article, which ends with a recommendation of compromise and partnership negotiations with the aggressor de facto due to the losses of Ukraine. The second part is an attempt by the authors to clarify the main preconditions and premises of Habermas’s communicative philosophy, which demonstrate the fundamental limitation of its explanatory power for this type of radical dissent, which is war. First of all, the authors suggest, it is the idea of pacification in interethnic relations, which forms the intellectual mood after World War II and finds its philosophical expression in the discovery of a priori foundations of understanding (Apel, Habermas) and ideas of developing formal pragmatics of communication. Attention to the latter allows the authors to demonstrate how consistent analysis of a priori (counterfactual) conditions of communication is considered by Habermas primarily in the historical perspective of positive dimensions of social integration - democratic equality, freedom, justice for participants of communicative interaction. The article concludes with a detailed analysis of the significance of the concept “lifeworld” as one of the central concepts within communicative theory and an analogue of “form of life” and “culture”. The authors argue the idea of perspective creating a common lifeworld for all in the processes of communication is fundamental to the works of the philosopher. The article concludes that the regulative idea of the single world as a basic ontological assumption of communicative theory does limit its explanatory capacity in terms of a war situation as a clash of different cultural worlds. (shrink)