Miska was no novice. On the contrary, his military ability was exceptionally solid; otherwise, Queen of Chaos would never have made him a Demon Prince and placed him in command of the entire demon army. Miska understood demons' flaws perfectly, so rather than committing all his forces at once, he divided them into six major groups and had five of them confront the devil army head-on.
The tactic he employed was essentially a modified version of piecemeal reinforcement. He would not commit all his troops at once, but attack the devil army in batches and from different directions. In the eyes of anyone with military knowledge, piecemeal tactics were the stupidest approach in the world. After all, wasting troops in war was the most shameful thing imaginable. If possible, every commander preferred to crush their opponent with an overwhelming numerical advantage.
But this approach did not suit demons. Demons were the typical sort who could become dragons alone but worms in a crowd. When demons fought devils one-on-one, they were often incredibly aggressive and possessed an absolute will to fight to the death. Yet when a group of demons gathered together, the opposite happened. They were extremely prone to getting caught up in all kinds of inexplicable trouble—infighting, for instance, or scattering far too quickly when the battle went badly.
Thus, rashly gathering a vast number of demons in one place was itself an extremely risky move. This was true for both Tanar'ri and Obyriths. Their chaotic nature made cooperation difficult for them. Dispersing the troops was therefore also a way of spreading out the risk.
Second, once all troops had been committed at once, the side of order would have room to respond. Whether they chose to fight or retreat, their options would be clear. But attacking in waves