Threats, strategies, conflicts... not even News but also the analysis of several possible "future of defence", send us more and more away from cold war context, for which most in-service occidental weapon systems have been conceived. To be in a constant way to use the best suited equipment, technology progress has to be completed by new architectures of the combat system. Cooperative engaging of specialised equipments (sensors, effectors), sharing their assessment of operational situation and contributing to shape it, is one of the most important evolution in combat contact.