Does membership in the KRNS infringe on other Koga groups?
This depends largely in part on what organizations we are talking about. The KRNS is a governing body of the Koga Ryu Ninjutsu therein. It is therefore possible for another federation that claims lineage to Koga Ryu Ninjutsu, that is not recognized by or is in violation with the KRNS standards, to create a conflict and the member shall have to choose where their interest lies. Having said that, the KRNS does recognize many lines of knowledge to the historic Koga ninja, but within the scientific community this must be substantiated with evidence. One of our goals has always been to clear the air of what is and what is not Koga Ryu Ninjutsu.