The Dragon Republic, written by R.F. Kuang, is the sequel to The Poppy War. Unlike many sequels, The Dragon Republic doesn’t suffer from sequel syndrome. It follows protagonist Rin as she struggles to come to terms with the atrocities of war, the loss of trusted leadership, drug abuse, and PTSD. If you haven’t read The Poppy War, I highly suggest doing so and then immediately following up with The Dragon Republic.