Yes, I didn't put that much thought into the topic, just did it right after the post "Regions of Hope and Dread". Seems like it would be nice to differentiate between units that have seen war, and those that haven't. Whatever you might want to call the stat.
A similar idea has been brought up in this topic: http://forum.battlemaster.org/index.php/topic,436.0.html
We already have this stat--it's called "morale". Units with low morale are more likely to run away.
The other post, on "experience", is a duplicate of training.
