I think there are some interesting parallels with the Meiji invasion and occupation and the Hideoyoshi invasions of the late 1500s. I recommend Sam Hawley's book for a fascinating look at that older war. https://www.amazon.com/gp/product/B00NB0HG7G/ref=kinw\_myk\_ro\_title
The Imjin War: Japan's Sixteenth-Century Invasion of Korea and Attempt to Conquer China https://www.amazon.com/dp/B00NB0HG7G/ref=cm_sw_r_cp_apa_i_GG.rDbAVAZ3QC
The Imjin War - Sam Howley