worshippers via the Book of Nuggan, a "living testament" in which new "abominations" appear "religiously" from Nuggan, with the necessity of adding fresh pages making it the only holy book to be kept in a ring binder. These enforcements can be very impractical and inconvenient, such as banning chocolate, Borogravia's main export; depictions of living things (apart from the Duchess); babies (this law is usually overlooked); crop rotation; and any means of airborne communications (namely semaphore and carrier pigeon). The banning of semaphore led to the Borogravians cutting down the clacks towers along the Zlobenian border, which was one of the main causes of war between the two nations (with intermittent conflict going on for so long that no-one can remember why it is actually happening), and the reason for Ankh-Morporkian diplomatic intervention. Perhaps the most militarily aggressive nation on the Disc, Borogravia is known for invading its neighbours and fighting wars (in Night Watch, it is mentioned in passing that Borogravia has invaded Mouldavia). However, it struggles to keep up with this demand because of its crippled economy (caused by highly inconvenient "abominations"), and as a result of fighting the country is seriously short of young men, so much that a proportion of its soldiers are in fact women in disguise (see Monstrous Regiment). Zlobenia Zlobenia, a pun on Slovenia, with its capital Rigour, a pun on Riga, is a principality ruled by Prince Heinrich, who is described as tall, handsome, and smug. It has fought numerous wars with Borogravia, usually territorial disputes over the River Kneck, which forms the border between the two nations and frequently changes its course after flooding. Zlobenia's soldiers wear blue uniforms. Borogravians call Zlobenians 'swede eaters'. Heinrich has visions of making Zlobenia "the Ankh-Morpork of the mountains", much to the amusement of Samuel Vimes. Heinrich is also heir to the Borogravian throne after the death of the Duchess Annagovia. In Monstrous Regiment he declares war against Borogravia to assert his claim. Chalk The Chalk is an area of rolling chalk downland near Lancre, bearing a great resemblance to Pratchett's native Wiltshire. The "soft" geology of the area is, according to some mountain witches, not conducive to the channelling of magic. In fact this is a misconception (the bones of the hills are flint), and powerful witches can and do reside there, although the local baron has outlawed witchcraft, meaning they do not identify