Written by General (Ret.) Jean-Paul Paloméros, Lieutenant General Pierre Gillet, Commander of the Rapid Reaction Corps - France (RRC-FR), David Tennenhouse, Chief Research Officer (VMware), Axel Dyèvre and Séverin Schnepp (Avisa-CEIS) The ability for combatants to operate in coordination has always been a determining factor of the armies’ superiority over their opponents. The sharing of information in near real-time enabled by the digital transformation allows the optimization of their communication and facilitate their maneuvers both at strategic and tactical levels. This revolution is based on the joint management of data and the network that channels it. Recalling that data and networks are the two pillars of collaborative combat, the authors of the white paper "DATA AT THE HEART OF COLLABORATIVE COMBAT" present their related technological, operational and cultural challenges, as well as their integration in the broader context of the digital transformation of the armed forces.