In 2021, Prof. Ryo Hinata-Yamaguchi published a book entitled Defense Planning and Readiness of North Korea: Armed to Rule, First Edition through Routledge. This book revolves around the question of how has North Korea developed and managed its military readiness to achieve its strategic ends by analysing the way political, economic, and societal factors affect it. A credible and unique point of this book is that it draws from diverse Korean, English Japanese, and Chinese sources, which serves as a great value to scholars of East Asian security issues, strategists, and policy analysts.
Further details: https://www.routledge.com/Defense-Planning-and-Readiness-of-North-Korea-Armed-to-Rule/Hinata-Yamaguchi/p/book/9780367771102