Pheasant Island, the world's smallest territory with joint custody, will swap its nationality from Spanish to French on 31 July in a bi-annual handover.
Irun, Spain and Hendaye, France are responsible for looking after it for six months of the year as a series of protective measures have been taken to stabilise its surface area.
From 1 February until 31 July, Spain holds stewardship of the condominium – a term used to refer to a political territory in which multiple sovereign powers formally agree to share equally. The other six months onward, this small island becomes an official part of France.
This singular event occurred following a ceasefire at the end of the 1618-1648 Thirty Years' War between these two countries, when it was chosen as a neutral space to delimit the new borderlands.
The 200-metre-long island was turned into a peace metaphor.
The evolution of Pheasant Island's name
The island has many names. In Roman times, it was known as “Pausoa,” the Basque word for passage or step.
Then, the French translated this as “Paysans,” meaning peasant, before switching it to “Faisans,” meaning pheasant.
“In Basque, some continue to call it Konpantzia, a name which undoubtedly derives from the meetings which were held on the island during the 17th century,” says Basque Country Tourism's website.
There are only a very few occasions when visitors are allowed onto the island. These include the bi-annual handover days, when the island has the official ceremony, with flags, delegates, diplomats and plenty of formal pomp, or as part of heritage tours.
Where to find the other condominiums?
Currently, there are only a handful of condominiums in the world.
In Europe, Lake Constance is a tridominium between Austria, Germany and Switzerland.
Another is the Moselle River and its tributaries, the Sauer and the Our, a condominium shared by Germany and Luxembourg.
Then there is the Joint Regime Area, a shared maritime zone between Colombia and Jamaica, that was established through a bilateral agreement that was reached in 1993 but did not enter into force until 1994.
And the Abyei Area contested by South Sudan and Sudan.
The Gulf of Fonseca is also a tripartite condominium portioned up by Honduras, El Salvador and Nicaragua.
Antarctica is the last but also the largest and most important theoretical continental condominium governed by the 28 signatories of the 1959 Antarctic Treaty.
