From the publicity stuff for Season Eight of Game of Thrones:
“It’s about all of these disparate characters coming together to face a common enemy, dealing with their own past, and defining the person they want to be in the face of certain death. It’s an incredibly emotional haunting bittersweet final season and I think it honors very much what [author George R.R. Martin] set out to do — which is flipping this kind of story on its head.”
And what Martin set out to do, in his own words:
“I admire Tolkien greatly. His books had enormous influence on me. And the trope that he sort of established—the idea of the Dark Lord and his Evil Minions—in the hands of lesser writers over the years and decades has not served the genre well. It has been beaten to death. The battle of good and evil is a great subject for any book and certainly for a fantasy book, but I think ultimately the battle between good and evil is weighed within the individual human heart and not necessarily between an army of people dressed in white and an army of people dressed in black. When I look at the world, I see that most real living breathing human beings are grey.”
…And yet, there those two armies are.