Belarus (Wikipedia)
Belarus, officially the Republic of Belarus, is a landlocked country in Eastern Europe. It is bordered by Russia to the east and northeast, Ukraine to the south, Poland to the west, and Lithuania and Latvia to the northwest. Covering an area of 207,600 square kilometres (80,200 sq mi) and with a population of 9.2 million, Belarus is the 13th-largest and the 20th-most populous country in Europe. The country has a hemiboreal climate and is administratively divided into six regions. Minsk is the capital and largest city; it is administered separately as a city with special status.- Interesting Times (allthetropes.org)
Interesting Times is the 17th Discworld novel, and the first since Eric which returns to Rincewind as the central character. However, thematically it’s much more a look back at the first two Discworld books, The Colour of Magic and The Light Fantastic, and how much the setting has changed since then.