The article examines how the Ukrainian language has become a strategic battlefield in Russian propaganda, acting as a front in the Russian-Ukrainian conflict. It reports on the analysis conducted within the Discourse-Historical Approach of media statements made by Russian politicians and propagandists. It shows how current attacks on the Ukrainian language are a continuation of historical practices of linguistic repression. It reveals that the rhetoric of delegitimization of Ukrainian is based on recurring topoi, such as artificiality, primitiveness, and hostility, and on well-established mental models that legitimize Russia’s takeover. The results confirm that Ukrainian is not seen as a neutral communication tool but as a hostile element in the narrative of the uniformity of the “Russian World.” Russian depreciations and delegitimizations aim to deny the existence of a distinct Ukrainian national identity as a neo-imperialist strategy to subjugate Ukraine.