Re: Naruto 453 spoiler/Prediction thread.
Why do people keep thing Gaara won't allow it or a war could start over this? Killing missing-nin in typical protocol of the village they belong to. In Kakashi's own words, "The usual punishment for that is death. It's only because Tsunade was so lenient that he hasn't been killed yet." The decision on the matter belongs to the Kage of that village. Gaara has no authority in Leaf security. His opinion on the subject means nothing. Furthermore, with Sasuke working with Akatsuki, there's reasonable argument that can be made against Danzo's decision.
Neither will Madara? From his perspective, Danzo's order means nothing. Sasuke is going there to kill every single member in the village, not just the elders. It only forces Sasuke to follow through on his claim.