Jingo by Terry Pratchett

The 21st novel in the Discworld series is centrally focused around the characters from the City Watch. The newly minted peer of the realm, Sir Samuel Vimes, is pitted against his instincts as a cop and the expectations and traditions held for lords and ladies. But this is not a man to wear any labels or answer to any authorities. He keeps his own schedule, thank you very much. 

A tiny spit of land pops up in the sea between Ankh-Morpork and Klatch. This triggers the only rational solution, hostile negotiations with much underhanded espionage and political intrigue in true Discworld fashion. Lord Vetinari invites ambassadors from Klatch to peace talks in Ankh-Morpork.  There will be parades!

Absolutely nothing should go wrong with the City Watch running ship shape. Until that assassination attempt, of course, mid parade. Doing what the City Watch does best, they begin an investigation. The culprit is so obvious Corporal Nobbs and Sergeant Colon close the case in no time. They are so successful, in fact, that the Patrician takes them on a most top secret mission. An absolute gem.

Pratchett is a genius of satire. While it may not be for everyone, I highly appreciate the dry, British wit. I feel my intelligence tested and pushed with all the analogies. Again, I'm never quite sure of where the story is going until I get to the end. Jingo is a wonderfully satirical look at the history of imperialism from the British Isles. 

The city's sense of patriotism takes on an anthropomorphic nature as any good Discworld book would have. In a city of people that has melted together for centuries, now it is a cauldron of patriotism. Sure those neighbors are fully assimilated and generational, but are they patriotic.