'The Isarimer

7,000 (45% casualties)

vs 

Belarus 10,000

Human army retreats, 40% cut down or desert. 6,000 remain in Minsk.Must be breached and the garrison destroyed before region is claimed.'

My fault for not double checking this, but I think you may have calculated this with the wrong army. It only came to my attention when adding up the numbers for this season. I was using my smaller Bloodstalkers, not the 12k Hellwalkers. Sorry for only figuring it out now :lol