Edmund BlackAdder said:
I prefer Dale's
explanation myself:
". . . ninjutsu is not a 'martial art'. . . It is, however, a collection of historical martial (that is, military and related) skills.
Ninjutsu, as such, really refers to the primary specialties/functions of historic ninja groups: intelligence collection and the associated skills of infiltration, disguise, running agent networks, clandestine communications methods, and use of specialized gear. Fighting or close combat played little part in most of that, unless an agent somehow really 'screwed the pooch' and got caught under suspicious circumstances in some unauthorized place.
The Bujinkan training organization headed by Masaaki Hatsumi contains the teachings of nine old Japanese martial systems, three of which are specifically 'ninjutsu' systems and some others which were associated with ninjutsu as fighting systems used by these people. However, those particular traditional skills I mentioned above are for the most part not formally taught in the Bujinkan today, having been superceded by technological developments. Instead the 'ninja' focus in the Bujinkan is mainly on the fighting methods, which are still applicable.
In terms of combat methods, more of what is actually taught in the Bujinkan comes from systems used by members of the hereditary samurai class, though actually ninja were generally samurai, meaning. . ."
Edmund BlackAdder said:
Practitioners were often employed by the nobility as scouts, bodyguards and assassins.
Actually, it is my understanding that there is virtually nothing in the way of concrete historical evidence to indicate the Iga/Koga "ninja" were involved in assassinations. It seems to be a product of folklore and superstition, not history.
Laterz.