This article describes the development of the US Department of Defense's team training program for military health facilities, entitled TeamSTEPPS (Team Strategies and Tools to Enhance Performance and Patient Safety). The program was based on two prior military crew resource management (CRM) programs and prior evidence in the field and was adapted to address issues encountered in military facilities, including the rapid turnover of personnel and the need to adapt to the cultures of specific military services. The program consists of teaching core skills in leadership, situation monitoring, team support, and communication through an interactive curriculum stressing application to everyday scenarios. The article extensively reviews the challenges of implementing the program and future plans for disseminating and evaluating the training.