Whether I agree or disagree with them, I find this kind of analyses of fictional battles very fun to read. And this particular blog seems to be full of fascinating articles (I recommend the one about how a "medieval/fantasy" battlefield ought too look like after a battle -- spoiler: most depictions are inspired by the aftermath of WWI battles; battlefields after medieval battles would look pretty much unspoiled).
Be sure to check the ones about Paganism/Polytheism! The mind-blowing thing about paganism is that unlike the 3 major religions of today, it didn't start with a holy book (orthodoxy), but with rituals. It's like a caricature of scientific method. We did so and so, and the harvest was good. Therefore, the ritual works. There is little point in learning who exactly the gods are or what they think. The important thing is not offending any of them, knowing which is responsible for what, and making deals with them. As long as the (sacrificial) ritual seemed to work, it would be repeated with the slightest detail. If it didn't, they would experiment. They were very open to change in practice, because with no word of god to rely on they knew they could only take imperfect glimpses into nature of gods.
Ann Leckie's fantasy novel The Raven Tower is set in a world where such pagan gods are real, and dives right into a description of how human tribes will spend generations training them to respond favorably.
A few years back there was a humorous review of the Battle of Hoth from "Empire Strikes Back" that was pretty cool: https://www.wired.com/2013/02/battle-of-hoth