The purpose of the study was to analyse the role of military documentation in the construction of historical and social memory and to investigate specific challenges associated with the preservation of digital evidence of the war in Ukraine. A comprehensive interdisciplinary approach was applied, which through regulatory, document, comparative, and content analysis covered legislative acts, institutional practices, archival projects, digital platforms, and open-source materials, which allowed tracing the mechanisms of creating, storing, verifying, and using digital evidence of war. In the course of the study, it was found that digital military documentation was transformed from an auxiliary information resource into a central element of war documentation, simultaneously acquiring evidence, memorial, and communicative significance. It was revealed that a full-scale war led to the development of one of the world’s largest arrays of digital evidence, which includes official documents, multimedia materials, satellite images, and eyewitness accounts. The functional complementarity of various types of digital documentation was revealed, where state archives provide legal legitimation, and public and media initiatives – efficiency and social representation of events. Analysis of the regulatory framework revealed gaps in the procedural regulation of the status of digital evidence, which led to inconsistencies in law enforcement practices. The study of institutional practices showed progress in the scale of digitisation of archival funds, simultaneously identifying the problem of fragmentation of storage standards and metadata. Separately, it was proved that the spread of digital content manipulation technologies has actualised the need to introduce complex verification procedures and international evidence evaluation protocols. It was concluded that the effective preservation and use of digital military documentation is possible only if state, public, and international institutions coordinate based on unified legal, technical, and ethical standards. The results of the study will be of interest to archivists, lawyers, researchers in the humanities, journalists, and specialists in documenting war crimes who work with digital evidence of war and the development of historical and collective memory

archives; multimedia materials; eyewitness accounts; disinformation; crimes