Shinobi Union

It is evolved form of the shinobi alliance first appearing in Shikamaru Hiden between five great shinobi nations and the land of iron despite it,s name samurai are welcome to join. with it,s headquarters being in the land of iron. Where the shinobi alliance was formed it evolved beacuse smaller nations and ninja villages which wanted to join the shinobi alliance the reason was to mostly secure peace. to also not to challenge 70'000 shinobi strong 5 great shinobi nations.

the five kage are the heads of the shinobi Union and they begin haveing of doing most things coherently and together on most issues like mainly dealing threats that threaten them all. beacuse of this cooperation the dangerous missions of shinobi world have gone down and also domyo infighting has down. Beacuse they feel less threaten by one another.