In international law, a condominium is a territory in which two sovereign powers have equal rights. Although a condominium has always been recognized as a theoretical possibility, condominiums have been rare in practice. The biggest difficulty with condominiums/condominia is solving disputes between the two sovereign powers, and ensuring co-operation between them; which is one reason why so few have existed in practice. International law deals with the relationships between states, or between persons or entities in different states. ...

Examples of condominiums

• Cyprus was shared for over three hundred years between the Byzantine emperor and the caliph.
• Neutral Moresnet was shared from 1816 until 1919 between The Netherlands (later Belgium) and Prussia (later Germany).
• Sudan was a British–Egyptian condominium until 1956.
• The Canton and Enderbury Islands were a British–American condominium from 1939 until 1979 when they became part of Kiribati.
• The New Hebrides formed a French–British condominium until independence as Vanuatu in 1980.
• Under French law, Andorra was once considered to be a French–Spanish condominium, although it is more commonly classed as a co-principality.
• In 2001, the British government proposed sharing sovereignty of Gibraltar with Spain, but this was decisively rejected by the people of Gibraltar in a referendum in 2002.

The Byzantine Empire (Native Greek names: ΡΩΜΑΝΙΑ Romania or ΒΑΣΙΛΕΙΑ ΡΩΜΑΙΩΝ Basileia Romaion) is the term conventionally used to describe the Greek-speaking Roman Empire during the Middle Ages, centred at its capital in Constantinople. ... Caliph is the term or title for the Islamic leader of the Ummah, or community of Islam. ... Unofficial flag of Moresnet (1883) Moresnet or Neutral Moresnet was, from 1816 to 1919, a tiny European mini-state of about 3. ... 1816 was a leap year starting on Monday (see link for calendar). ... 1919 was a common year starting on Wednesday (see link for calendar). ... The Netherlands (Dutch: Nederland) is the European part of the Kingdom of the Netherlands (Dutch: Koninkrijk der Nederlanden). ... The coat of arms of the Kingdom of Prussia, 1701-1918 The word Prussia (German: Preußen or Preussen, Polish: Prusy, Lithuanian: Prūsai, Latin: Borussia) has had various (often contradictory) meanings: The land of the Baltic Prussians (in what is now parts of southern Lithuania, the Kaliningrad exclave of Russia and... 1956 was a leap year starting on Sunday of the Gregorian calendar. ... The Canton and Enderbury Islands are the coral atolls of Canton (now Kanton) and Enderbury in the Phoenix Islands, about 1,850 miles (3,000 km) south of Hawaii in the central Pacific Ocean. ... 1939 was a common year starting on Sunday (link will take you to calendar). ... 1979 is a common year starting on Monday. ... The New Hebrides are an island group in the South Pacific that now form the nation of Vanuatu. ... 1980 is a leap year starting on Tuesday. ... Co-regency refers to the situation where a monarchial position (such as King, Queen, Emperor or Empress), normally held by only a single person, is held by two. ... 2001 is a common year starting on Monday of the Gregorian calendar. ... Sovereignty is the exclusive right to exercise supreme authority over a geographic region, group of people, or oneself. ... A referendum (plural: referendums or referenda) or plebiscite is a direct vote in which an entire electorate is asked to either accept or reject a particular proposal. ... 2002 is a common year starting on Tuesday of the Gregorian calendar. ...

See also

• Condominium, a form of housing tenure
• Protectorate
• Suzerainty
• Dependent area