Whose side is Terry Pratchett On, Anyway?

"War, Nobby. Huh! What is it good for?" he said.
"Dunno, Sarge. Freeing slaves, maybe?"
"Absol--well, okay."
"Defending yourself against a totalitarian agressor?"
"All right, I'll grant you that, but--"
"Saving civilization from a horde of--"
"It doesn't do any good in the long run is what I'm saying, Nobby, if you'd listen for five seconds together," said Fred Colon sharply.
"Yeah, but in the long run, what does, Sarge?"

From Thud!