|The enclave of Neum in the territory of Croatia is a historico-geographical strangeness:|
- in 1399, the Republic of Raguse bought in Zachloumie the territory of Neum, which was added to the territories that the city had.
- in 1699, after the Turkish Great War, Raguse gave up the control of the area of Neum-Klek to the Ottoman Empire by the treaty of Karlowitz. That gave to the Turks access to the Adriatic Sea, and also the collection of customs duties, but that ensured Raguse a protection against the ambitions of the Republic of Venice which had part of Dalmatie in north.
- Neum remained under the control of the Ottoman Empire during 179 years, until 1878, when Bosnia-Herzegovina passed to the Empire Austro-Hungarian.
- Neum joined then the Kingdom of Serb, Croatian and Slovenien, then the Yugoslav republic.
- since 1992, Neum is part of Bosnia and Herzegovina.