Jingo Corgi Audio Books 1997 ISBN 0-552-146846

Discworld goes to war, with armies of sardines, warriors, fishermen, squid and at least one very camp followers.
As two armies march, Commander Vimes of ankh-Morpork City Watch faces unpleasant foes who are out to get him … and that’s just the people on his side. Jingo makes the World Cup look like a friendly five-a-side.