It says this is answered in faq, anyone know how i can find the answer there ?
Q: I was trying to stat up a horse animal companion when I realized under druid animal companions, the advanced horse section says special ability: war trained (see Bestiary). I looked, but did not see anything. What exactly is this referring to in the bestiary?
A: (James Jacobs 11/25/09) War trained is actually detailed under the description of the Handle Animal skill. Of course, there it's called "Combat Training. " It's one of the "general purpose" trainings you can give an animal. Horses in particular gain a special benefit once they're combat trained-their hooves are from that point treated as primary weapons, not secondary ones. [Source]