Review Detail of King_Tartarus in The Knight of Ruin(DxD)

I've liked the story since the beginning, but this war arc just has me invested, and it isn't just a senseless war for the mc to slaughter any and everyone in his path. It's one waged for sensible purposes that aren't just killing to be a chuuni edgelord or whatever. This is a conquest for the future, for protection, for power, and best of all, for the greater good.