What you do not consider is, that this time our army has the most advanced gear one could imagine.
The finest steel from our dwarven forges.
The sturdiest shields made from mountain wood.
And the strongest warriors raised deep inside the mountains.
Ow yeah, thats possible, because your army was lightly armed when you enterd mine village, its possible that you got some gear and silver from Heskey from his failed siege.
Do not worry, when you get it, you will be destroyed, just like those 3 other army's and prolly just like those 2 other army's that are waiting to attack .