Ending was a bit rushed to me it seemed like the yuri was forced/rushed also, well I don't mind it anyway since the incest pairing broke which surprised me the most and was a quite nice twist.
But the story itself is extremely awesome. You couldn't predict who will survive cause at the random deaths which made it really realistic. If you wabt peace you gotta make sacrifices in war. I hope this would have gotten an anime but yeah just hopes but they should really extend the last chapters a bit more fighting and stuff.