This story is a beautifully coreagraphed row of fighting scenes. It is not the Chinese type, here the fight is not on wires, they know how to shoot an arrow, how to pose with a sabre or pike or whatever weapon that it should look real, how to make hitting a target believable, and how to look like someone suffering a lot due to different kinds of hardships, like sand, enemy, honor. They seem to take honor very seriously. And the Korean type of martial art is at least as good to watch as the Chinese.
It is situated into a very unstable historical era, with multiple folks, languages, and this makes the drama exceptionally weird and fun, despite the lack of real story (it is just a doad movie about trying to survive in the ancient east).