Check your AW scoring!
In our most recent war, our opponents showed an attack bonus of 439 (11 missed) but we had 18 different people register at least 1 defensive kill, (as shown by the skirmish rewards). It's not logically possible for our opponents to have had more than 432 in attack bonus. And since some of our people had multiple defenders with multiple kills, their number should have been even less.
Mod comment please.