On the bottom right hand side of a battle you can copy the battle report in a link. This allows you to show to others and link on the forums.
This image shows us a legion battle. it is composed of about 6 people who face the elite legions as well as their leaders in the campaign battles.
Upon defeating these legions you awared a good sum of battle points as well as an item.
This is the battle interface. The attacks happen from top to bottom starting from the right hand side and end on the left hand side when it then repeats it self.