Trauma and traumatism should be considered from a dynamic perspective, that is to say as something which is ongoing and changes with time. Thus, the range of PTSD (Post-traumatic stress disorders) is limited, insofar as it is static, referring only to symptoms of a certain type. The recently promoted notion of resilience confirms this dynamic point of view. The adolescent may present disorders which do not belong to what is properly called “war neurosis”, but which seem more serious and troubling.