Pratchett Terry. Discworld 21. Jingo

Jingo is the 21st novel by Terry Pratchett, one of his Discworld series. It was published in 1997.Ankh-Morpork has been at peace for a century, and so has Al-Khali. But now there are people on both sides who think it's time to give was a chance, and will happily help it on its way with a few murders.Modern war needs modern weapons. Unfortunately, Ankh-Morpork got rich making and selling them to Al-Khali. But it's just possible that salvation lies in the hands of the great inventive genius Leonard of Quirm, whose sketchbooks are filled with devices for killing people, flying through the air, and weighing cheese.The rising of a previously submerged island and the subconstituent sovereignty dispute were inspired by the real-life island of Ferdinandea.