Chimon Volume I

This book is an insightful exploration of the ancient ninja art of chimon, or "earth gate," which encompasses geography, terrain mastery, navigation, and environmental adaptation within the Togakure ryu ninpo tradition. The book bridges feudal Japanese shinobi practices with modern special operations tactics experienced by the author. It delves into the etymology and history of ninjutsu, the 18 skills of ninpo, and the tenchijin philosophy influenced by Onmyodo, while providing practical guidance on tools such as maps, protractors, compasses, pace beads, and clinometers—comparing medieval improvisations to contemporary applications. Through historical anecdotes, objective reviews, and hands-on activities, the author emphasizes chimon's enduring relevance for survival, strategy, and resilience in evolving threats, positioning it as a holistic framework for harmonizing human intent with the earth's unyielding forces.