Pope Julius II led troops into combat both before and after he became pope. From the Catholic Encyclopedia:

http://www.newadvent.org/cathen/08562a.htm
many popes lead armies, the Pope was the most powereful man in europe for a long time, of course he would have an army

No one seemed to think that was at all unusual. And of course, there are the military religious orders, of which there were over a hundred:

http://www.newadvent.org/cathen/10304d.htm

Knights Templar can never be considered preist..

Also, from a description of the Bayeux Tapestry:

"Famously the Bayeux Tapestry depicting the Norman conquest of England shows Bishop Odo, bishop of Bayeux, with a club in his hand lashing out against the enemy. The Bishop's rationale for his actions was that it wasn't a sharpened weapon"

http://re-xs.ucsm.ac.uk/cupboard/fi...says/essay2.htm
Your right as i have said through this whole debate there was exeptions ot the rule and im sure you can find some other priest that fought, but not as a standard.