An Air Force officer turned strategy researcher, Jean-Luc Lefebvre is a specialist in space issues. He participated in the creation of the Strategic Research Institute of the Military School (IRSEM) to study the issues raised by the new environments of confrontation: cyberspace and outer space. Anxious to share his passion, Jean-Luc Lefebvre taught space techniques in engineering school for 35 years and gave numerous conferences in France and abroad. Involved in the field of publishing, Jean-Luc Lefebvre is the director of the spatiology field of the " Sciences " encyclopedia at ISTE editions. He is regularly invited by news channels (LCI, BFM TV) to analyze events in the light of his strategic expertise.