The cast and acting are great, but the story is incorrect. Turks and Goguryeo fought together against Khitans. Goguryeoans and Turks were peaceful at that time. I also don't find that Tang helped Turks and Goguryeoans to wipe out Khitans. I believe it is to dramatize the series. Other than that I liked how the episodes are connected to each other and make sense in later. The clothes are also correct, unlike any other series. I am shocked that they knew how each country wore the armours at that time. Normally they would wear scrap armour in other series, but in this great.