The ultimate goals and basic forms of social conflict have remained unchanged throughout history. Nevertheless, today there is an evident expansion in the application of new methods, techniques and means for waging war. The continuous fusion of revolutionary achievements in the field of computers, satellite communications and the media has radically improved the possibilities of warfare, despite the fact that technological achievements have not substantially changed the geostrategic and political-economic goals of the war itself. Cyberspace provided enormous opportunities for conducting special propaganda actions as well as for carrying out attacks via computer networks on enemy information systems and thus expanded the space for conducting information operations. Information operations can be conducted independently or in support of conventional, kinetic, conflict. The authors of the paper point out the importance that information operations have in modern armed conflicts on the example of the conflict in Ukraine. In the introduction, an overview of different conceptual definitions of information operations is given. Then, an analysis of the Russian theoretical and strategic-doctrinal approach to information warfare was conducted. After that, the specifics of information operations from the point of view of their content, scope, place and role in modern armed conflicts, on the Ukrainian example, are explained. The paper should be viewed as a starting point for a broader discourse, because it is not possible to discuss this issue comprehensively in all its complexity within the given format. The dramatic events in Ukraine have unequivocally indicated to us that the information aspect of the hybrid war should not be underestimated or neglected.