Abstract: Aiming at the problem that “real soldiers” in the LVC system cannot observe “virtual soldiers” and cannot completely meet the army's tactical training needs, the research on the configuration under the condition of limited interaction between virtual and real entities is carried out. Taking equipment is as the node, taking the interaction between the equipment that conforms to the objective facts of combat as the edge. An undirected graph description example of a virtual-real node interaction is build. All the complete subgraphs in the undirected graph are all the configuration modes of virtual and real entities, under which any interaction can be carried out. A solution example of search algorithm based on complete subgraphs of undirected graph is given. Combined with the training requirements, the solution results are summarized into three configuration modes, autonomous confrontation, control command and management exercise. The configuration scheme can provide support for the improvement of theoretical and technical level of actual combat and systematic training of our army.

Key words: army tactical unit, vitality and reality combining, tactical confrontation, military training mode, complex network, complete subgraph