I don't understand how one could adequately define "Courageous Restraint." As was mentioned before, restraint is a matter of discipline. It's something that is practiced, taught, ingrained into soldiers from the time they learn to fire a rifle. IDENTIFY your target, select an appropriate level of force, engage your target. If you are unable to identify or engage your target (for whatever reason), then you exercise restraint and do not fire your weapon.
This is another case of trying to reward soldiers for doing their job. If I wanted to award soldiers for doing their job, I'll give them a damn certificate of completion. "Congratulations, you completed a tour of duty in ________________ without killing innocent civilians. You have an IQ level higher than a cockroach."