Ninjutsu (the art of assassins) is a martial art with no known origin, some historians believe that Japan was the origin of Ninjutsu, others believe, Hashshashiun (Nizari Isma'ili sect of Shia Islam who lived in the mountains of Persia between 1090 and 1275, and their leader was Hasan Ben Sabah) were the originator of Ninjutsu. The word assassins cane from the name "Hashshashiun" (meaning hashish user).
Ninjutsu primarily designed for spying and discovering of secrets, mainly political or military information of another military or militia. Ninjutsu practitioner are trained in cover up, diversion, archery, drug, and explosives as well as hand to hand combat.
Eighteen set of techniques were mentioned in the manuscripts of Togakure-ryu, and they became universal for all Ninjutsu trainings, The 18 disciplines are:The 18 disciplines are:
Seishin-teki kyoyo (spiritual improvement)
Taijutsu (unarmed fighting)
Ninja ken (sword fighting)
Bojutsu (staff fighting)
Shurikenjutsu (knife throwing )
Sojutsu (spear fighting)
Naginatajutsu (naginata fighting)
Kusarigamajutsu (chain fighting)
Hensojutsu (disguise and impersonation)
Shinobi-iri (stealth and entering methods)
Sui-ren (water training)
Boryaku (military strategy)
Intonjutsu (escaping and concealment)