The topic of preserving war heritage has been relevant for several centuries; it is also important nowadays based on different assets. During the research, the values of war heritage and the reasons to preserve it were identified, as well as the problems of its’ preservation in different time periods and parts of the world. While working on the thesis research, strategies for preserving the war heritage after the First and Second World Wars were analyzed, comparing Russian and European approaches. For a deeper understanding of the Russian example, the formation of the topic of heritage conservation is also analyzed, starting from the foundations of the idea of architectural heritage preservation, ending with an analysis of the influence of the Great Patriotic War on the approach towards heritage monuments.