I have been covering chapters from a bird's eye standpoint in the past few chapters, or would you prefer the normal version?
When making strategies in my novel I use strategies that happened at one point in time, for example, in this chapter I used Alexander the Great's Cophen campaign.
I'll put down how Wikipedia explains ancient war strategy and you can skip to the novel if you do not like war and strategy.
Ancient strategy focused broadly on the twin goals of convincing the enemy that continued war was more costly than submitting, and of making the most gain possible from war.