As teams have become fundamental parts of today's organisations, the need for these teams to function and learn efficiently and effectively is widely emphasised. Also in military contexts team learning is vital. The current article examines team learning behaviour in military teams as it aims to cross-validate a team learning model that was originally developed and tested in an educational context. This team learning model includes several socio-cognitive factors that precede, constitute, and result from team learning behaviour. Findings based on path analyses indicate that psychological safety, social cohesion and group potency are positively related to team learning behaviour in military teams. In addition, team learning behaviour does not only foster the construction of mutually shared cognition and transactive memory systems, but also relates positively to the effectiveness of military teams.