Board Thread:Theories and Speculation/@comment-1872728-20160229033316/@comment-27660682-20160308092950

Ok good point on the world war thing id have to check that, but consider the distrust factor. Its highly unlikely that all 4 if those nations were willing to team up like that. If they were willing to team up on a nation 4 v1, what was stopping any single village from being singled out. The gokages only came together after the akatsuki captured 8 bijuu ( it was still thought bee was captured at the time ) that they decided to form an alliance against a threat to the whole world.

Konoha easily can solo bijuu though. They have yamato as well as the sharingan. I think the uchiha were explicitly told not to help when the nine tails attacked konoha because they were under suspicion. And konoha had a tight alliance with the uzumaki, all their jinhcurki came from there. So picking a war with the uzumaki is the same as doing so to konoha.