The article focuses on the reclaiming of militaristic ideas and the emergence of specific "militant piety" and "theology of war" in the Orthodox discourse of post-Soviet Russia. It scrutinizes the increasing prestige of soldiering in the Church and its convergence with the army. This convergence generates particular hybrid forms, in which Church rituals and symbols interact with military ones, leading to a "symbolic reception of war" in Orthodoxy. The authors show that militaristic ideas are getting influence not only in the post-Soviet but also in American Orthodoxy; they consider this parallel as evidence that the process is caused not only by the political context-the revival of neo-imperial ideas in Russia and the increasing role of power structures in public administration-but is conditioned by socio-cultural attitudes inherent in Orthodox tradition, forming a type of militant religiosity called "militant piety". This piety is not a matter of fundamentalism only; it represents the essential layer of religious consciousness in Orthodoxy reflected in modern Church theology, rhetoric, and aesthetics. The authors analyze war rhetoric while applying approaches of Karen Armstrong, Mark Juergensmeyer, R. Scott Appleby, and other theoreticians of the relationship between religion and violence.After the collapse of the ideology of state atheism, the advent of religious liberties in Russia provided the Orthodox Church with a wide range of opportunities to assert and manifest itself in the humanitarian field. However, during the demilitarization in perestroika and post-perestroika years, society has not expected the Church to do with war, earthly battles, and military service, to discuss the consecration of nuclear weapons or to build monuments to the army's glorious weapons. However, the recent Church's activities greatly belied these expectations in quite a systemic way.Well-known religious scholar Karen Armstrong uses the term "military piety" to denote the aggressive religiousness of fundamentalist movements in the second half of the 20th century and their hostile rejection of modernity. She writes that "the emergence within every major religious tradition of a militant piety popularly known as 'fundamentalism' has been one of the most startling developments of the late 20th century" (Armstrong 2001, p. 7). However, such a view suggests that militant piety is a modern anomaly and belongs only to fundamentalism, while "regular" religions are inherently peaceful and constructive (see also Armstrong 2014). We want to dispute this claim and suggest that positive attitudes towards war and militancy, practices and artifacts related to them