As an ex-soldier, this is utter BS. Combat is a unique environment and civil standards should not and must not be applied.
Any offence occurring during a period of conflict (including contraventions of the Geneva Convention) are always investigated by the Service Police; nothing else is required in my view.
Im curious... Or at least have been for a long long time. How do soldiers really feel about their bosses. Ahem the slimy politicians that start wars that the soldiers are sent in for years to try and clean up the politicians mess. At the same time burn them when their services are no longer required.