This drama has hands down one of my favorite Kdramas. I haven't seen all that many, but this one is really up there. The story is very unique, and has twists that keep you on the edge of your seat throughout the entire 20 episodes. It also has a political aspect to the drama that I haven't seen in any other Kdrama. The political angle is also something that I hadn't seen before, but thoroughly enjoyed. The only part of this drama that I did not like what the actual military strategies used in one episode (just because I felt like they weren't as effective as they could have been.) The Cast was perfect. 10/10 no questions asked. The music was also top notch, but not something I will probably listen to in the future. For that reason I gave it an 8/10. I'm not much of a rewatcher, but this drama is good enough to rewatch it in a year or two. Overall, I give this a 10.