The Astronaut Training Division is an integral part of the international team of the European Astronaut Center (EAC). This team consists of employees of the European Space Agency (ESA) and the Italian, French and German national space agencies (ASI, CNES and DLR), who work together on tasks in the field of European manned space flight. DLR contributes 20 specialists to the Astronaut Training Divison and three physicians to the Operational Medicine Division. In addition DLR provides the infrastructure of the Crew Training Center including a training hall, a diving pool as well as offices and control rooms. The European Astronaut Center serves as: