Throughout history, there's always been a perfectly good reason to start a war. Never more so if it is over a 'strategic' piece of old rock in the middle of nowhere. It is after all every citizen's right to bear arms to defend what they consider to be their own. Even if it isn't.
Amazon.com description: Product Description
: A new land has surfaced and so have old feuds. And as two armies march, Commander Vimes of Ankh-Morpork City Watch has got just a few hours to deal with a crime so big that there’s no law against it. It’s called “war.” He’s facing unpleasant foes who are out to get him . . .that’s just the people on his side. The enemy might even be worse. And his pocket Dis-organizer says he’s got “Die” under “Things to do today.