This article presents the expertise and know-how of ARMARIS in the field of combat systems for surface ships. It begins with an account of the excellence of the combat systems of the French naval forces—developed by the two leading French manufacturers, DCN and Thales, who have combined their activities within ARMARIS—and their total interoperability demonstrated in various operations. The author then provides a comprehensive definition of a combat system for surface ships, which meets all Navy requirements for future naval units. The article then states the principles on which the naval combat systems of ARMARIS are based. Based on these principles and on various other developments of DCN and Thales, ARMARIS proposes a design of a modern combat system that meets all challenging requirements.