Like the mature Japanese shogunate after Minamoto Yoritomo
, moreover, the concerns of Chinese warlords like Gao Huan were really overwhelmingly domestic rather than foreign.
Kaufman, founder of the Dojo No Hebi School of the Snake, offers a work of "docu-fiction." Based on his personal investigations into the teachings of Miyamoto Musashi's Book of Five Rings and Sun Tzu's Art of War, Kaufman has created an 'ancient text' written in the voice of a real-life advisor to the ruthless general Minamoto Yoritomo
, the first shogun of Japan.