Board Thread:Theories and Speculation/@comment-3568954-20150602045122/@comment-3568954-20150603020816

Legendary Super Saiya-Jin 4

a large chunk of shinobi were either to young or too old to go to war there were also shinobi who stayed to protect the villages

and these were simply the ninja villages that were in the war because it was a shinobi war not a war between nations only shinobi cold handle this war

not to mention it was just the 5 great ninja villages there are loads of other nations with there own ninja villages that had nothing to do with the war