"That's a very large war." War has covered the entirety of Earth more than once, but a war spanning not just a solar system but an entire galaxy must be something else.

"Just because it's necessary doesn't make it any less bad. The two aren't mutually exclusive." The idea of a war being 'good' is much more difficult than something that's bad but necessary. A good war is hard for D to imagine at all, what would such a thing even look like.