The first time I heard of the Bansenshukai was probably in 1997. It might have been quite a bit earlier, but I can be pretty sure that in 1997 I have seen some pictures of the manual, and descriptions in a book. I was fascinated.
Around 2000, as the Internet was getting more readily available in Romania, I have managed to retrieve a pdf scan of the Bansenshukai. This is available even now on the net. I have went to a Japanese teacher (native Japanese) and asked her if she can translate it and how much it would cost. She told me that it is impossible and that nowadays, Japanese people cannot read it, without special training.
Fast forward, and this particular translation appeared. Like all things, it is complex. On one side, it is the first translation of Bansenshukai that has appeared. Anthony Cummings has made a lot of effort so I think that he should have some praise for it. Having him named as an author of the book is a bit disingenious and I don't agree with a lot of what he has done. However, despite that, I think that this is a huge effort. Of course, the effort of Yoshie Minami I think is to be recognized as well.
So despite his other flaws, I am happy that this book was translated.
------------
A little bit about the feeling that I have concerning this book. The story of the book is in my opinion quite touching. Apparently, a ninja family tried to write this book as a kind of exposition of their art. They tried to gain employment in the service of a daimyo. It is already a testament that while this book was written, the kind of skills described in this book were already less in demand. 50-100 years before the publication date, they would have been state secrets.
The family failed to obtain employment. However, the book gained some popularity within the remaining ninja families. In a scroll that I have previously seen, it was written that one who tries to use these skills (ninjutsu) for personal gain, fame or money will not succeed. It is sad, but it is more or less what happened here.
------------
Now on to the book itself. It is generally quite pragmatical, and it contains the state of the art in technology of the 17th century. Of course, this means that a lot of it is outdated.
Yet, the general principles in a way have not changed that much. As such, at least a general framework of thinking about these things can be learned. The rest of the ideas are generally only useful for anthropological and historical research.
I will try to do a freestyle description of the contents, in order to better enable one to understand what seems useful and can be adapted, what seems obsolete, and what is simply missing from the text.
-------------
The first two volumes are named Seishin - Correct Mind.
These volumes describe a moral code of the shinobi. A lot of emphasis is done on typical Confucian and Buddhist virtues that were common at that time. In a way this is used to also counteract the image that shinobi were having as similar to the thieves and bandits. The second volume is more focused on having no fear of death. It uses a lot of Chinese medicine and philosophy to explain that death shouldn't be something to be afraid.
Generally, the core virtues described in this volumes are essential even today. However, no imapct could be made on today's operative by telling them about various Chinese scholars. And of course, most of the Chinese philosophical theory would not have any effect on the morale of the troops today.
It is however interesting to read, although in English it is a bit more prosaic sounding, and the rhythm is somewhat lacking. I have the feeling that this chapter was created solely for creating a favourable opinion from the lord.
----------
The next five volumes are named Shochi - Guideline for Commanders
It explains how shinobi's should be recruited and used. It explains various ways of controlling them, and their proper usage. There is also description of communicating with them, and coordinating actions of the troops with the actions of the shinobi no mono. This section also describes how to guard against enemy shinobi and how to use enemy shinobis against the enemy (double agents).
The very last volume describes the organization of the camps, guard duty, identification marks and passwords, etc.
The psychological aspects in the first four volumes are generally quite useful. Some of the tactics however would not be permissible in today's world, although I am quite sure that they have been used at times. The passwords, identifications and so on are not useful anymore in today's world. The last volume is again, mostly obsolete. Nevertheless, while obsolete, there are similar concepts in today's military science that have the same purpose and usage.
-----------
The science of ninjutsu properly is described in the rest of the book. Fujibayashi's school splits the whole of ninjutsu in two: In-nin and Yo-nin (in and yo mean yin and yang).
Yo-nin includes every action which is not black ops type of action. This includes, but is not limited to scouting, survey, disguise, and undercover operation. This is the topic of volumes 8-10
The In-nin includes methods of infiltrating similar to black-ops. This describe methods of infiltrating a castle, a house, bypassing various obstacles, camouflage, evasion, acting within the enemies compound, night attacks, medieval lockpicking and door-jamming etc. This is the topic of volumes 11-14.
An important point is done to explain that the methods in and yo are to be combined and they should be used together and mixed.
A lot of the stratagems are somewhat obsolete but still useful and applicable. Sometimes though, details are missing and they cannot be applied exactly as they are described. The lockpicking and door jamming is very difficult to understand without intricate knowledge of Japanese medieval doors and locks. Most of this is useless nowadays
The rest of the book contains details that are useful for the main strategies described above. Namely: Two volumes on "Tenji" and five volumes on shinobi tools. These are generally what people look for and they are at the very end!!!
-----------
The first volume on tenji discusses various divination methods. They are originally Chinese and based on the Chinese horoscope, usually imported via onmyodo.
A very interesting thing is that the author doesn't believe in these methods. He presents them though because they can raise the morale of the troops.
The second volume contains primitive meteorology. Most of it is useless in the modern world, and there are easier ways to find out the weather. I don't really think they worked that well in 17th century but YMMV.
Both of these volumes are generally useless and I cannot really see how they can be applied. The reading is quite boring as there are lists and lists.
-----------
The five volumes on ninja tools, are broadly addressing the various tools used in In-Nin operations:
- Climbing tools - most of them given without explanation, but they can be somewhat inferred. Some of the most interesting ones however are not at all obvious how to use (gumo-bashiro)
- Water crossing tools - very intricate explanations. Because of this, they are somewhat difficult to understand. The mizugumo is here. As expected, it is more a life buoy used single and not in pair. Various rafts, boats and other devices are described.
- Opening tools - these are used for infiltration. Mostly carpenter like tools, but made pliable and smaller. Also some nice sandals for walking silently
- Fire tools - 2 volumes on incendiary recipes and devices, torches, special gun usage and various uses of fire. Most of them are very innovative and inventive.
The climbing tools and the water crossing tools do give some interesting ideas for the improvisations and they could be adapted somehow. The opening tools are generally obsolete today. The fire tools are very interesting, but probably more trouble than are worth it. A few of them contain ingredients not readily available nowadays.
------------
The book has a volume added later, Bansenshukai Gunyo-hiki which is a rather eclectical collection of strategies. These don't necessarily relate to ninjutsu or shinobi no mono. It contains similar details as in the last Shochi volume, only a bit less organized, but more pragmatical. It is like a collection of tricks, strategies and tactics. Some of them are useful for the army as a whole: ways of setting and defending a camp, military formations, etc. . Others, are more like survival tips and tricks, medicine, etc. A lot of them are obsolete, but extremely interesting. Even more so than most of the other volumes.
------------
All in all read the thing if you are interested in history. Don't expect to be some super duper ninja. Even if you were to be back in the 17th century, some of these things would need further explanations and training. Some of the things here require skills that need to be trained and are not described in this book.
Gingetsu Itou seems to have had a clear view as to the essence of ninjutsu and how it has evolved and had to evolved to be of use. It also describes the conditioning needed in part. I find his ideas to be in the same vein of thought as those of Fujibayashi (author of Bansenshukai). Interestingly, I don't think Fujita Seiko had the same outlook or he didn't come of the same school of thought.
However, a lot can be learned and I find such things interesting to study in and of themselves. The strategies in themselves are useful, and some new ideas can be had even from older tools. Often better substitutes are available.
I actually have quite a lot more to say on these topics, but I think the review is getting quite long and I believe that it is enough for now. So 5 stars for finally getting this in print. Normally I would subtract at least 1 star for various other reasons, but I believe that the fact that this was translated and printed is good enough to make me forgo those reasons.