In this booklet, the requirements for leadership of complex organizations, present and future, are described. The changing performance demanded of military organizations and the implications for the development of leaders who will have the necessary capabilities are discussed. Since the performances required of military organizations are becoming more adaptive, the distinctive quality of future leadership will lie in the ability to develop and guide responsive systems of decision and action. The development of future leaders will require recognition of the organizational role of leadership and the design of training programs specifically attuned to that role. (Author)