nEUROn is a European program for an unmanned combat air vehicle (UCAV) technology demonstrator, conducted by Dassault Aviation as prime contractor under the authority of French defense procurement agency DGA. It heralds tomorrow’s defense programs, since it federates expertise from across Europe (France, Italy, Sweden, Spain, Greece and Switzerland). The nEUROn program is designed to validate the development of complex technologies representing all mission systems: high-level flight control and stealth, launching real air-to-ground weapons from an internal bay, integration in the C4I environment, innovative industrial collaboration processes, etc.