Trust and common core values will lead to a „for one another spirit“ in teams. This key to success in military operations will also support performance in civilian companies. To achieve and maintain the „for one another spirit“ requires constant leadership commitment. Dr. Thomas Harbaum is a German General (OF-6) in the Medical Corps of the German Armed Forces (Bundeswehr). He serves as the Medical Director and Commander of the Military Hospital in Hamburg since April 2022. He joined the Bundeswehr in 1984, studied medicine at the University of Münster and specialized in general medicine and tropical medicine. Harbaum has held various leadership roles, including positions in NATO and the Ministry of Defense in Berlin. He participated in various missions, amongst them deployments to Indonesia, Afghanistan and the Democratic Republic of Congo. He holds an MSc in Public Health from the London School of Hygiene & Tropical Medicine (University of London). His special focus is on how to improve performance in teams and how to apply leadership principles that support effectiveness and efficiency to reach common goals. “Leaders encourage to take over responsibility and enable the whole team to be prepared for that. The baseline is not to work with one another but for one another. We learned that military missions will be only successful when this simple principle is applied consistently.” In various discussions with the C-level of civilian companies the General noticed that military and civilian leadership culture need to adhere to the same principles to achieve success in operations. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx