What are the 9 schools of the Bujinkan?
The nine ryu (traditions or schools) are what Bujinkan Budo Taijutsu are based on. Three of these ryu are Ninjutsu schools, specializing more in espionage, information gathering, geometry, tactics, etc. rather than combative techniques. The other six are more geared towards combative techniques (although most of them has Ninpo elements in them). Some can be applied with many varieties of weapons and while others focus in on unarmed combat. These days the training is more focused more on the combative techniques rather than Ninjutsu. That is why Hatsumi Soke prefers to call our art Budo Taijutsu.