I know I'm late to the party but I just finished this today. Inspired largely by 20th century Chinese history (think the Opium Wars, but with ancient gods and mythological creatures), the countries of the Poppy War have clear parallels to China, Japan, and Europe. In the early 20th century, China's Qing Dynasty fell, ending thousands of years of rule by emperors thought to be the sons of heaven.

Politics and military strategy play a major role in this story. R.F.Kuang also touched a lot on classism, colorism, colonialism, and the collateral damage of unnecessary wars that span through generations, which I appreciated.

I can't recommend this book enough. To say that I'm blown away would be an understatement, especially owing to the fact that this is R.F. Kuang's debut novel, and she started writing it at 19! So excited to read the rest of this trilogy.