- Ceuta
- Curaçao
- Melilla
- Sovereign Military Order of Malta
- Saxony
- Madeira
- Sark
- Tristan da Cunha
- Assyria
- Persia
- Roman Empire
- HRE, Holy Roman Empire
- Byzantine Empire
- Korean reunification
- Latin Empire
- Polish–Lithuanian Commonwealth
- CAF, Federation of Rhodesia and Nyasaland
- Union between Sweden and Norway
- Denmark-Norway
- Kalmar Union
- Russian Empire
- Russian Republic
- DVR, Far Eastern Republic
- USSR, Soviet Union
- West Ukrainian People's Republic
- Austria-Hungary
- Ottoman Empire
- Siam
- Prussia
- DDR, The German Democratic Republic
- Saar Protectorate
- North Borneo
- Aden, South Yemen
- YAR, Yemen Arab Republic
- West Indies Federation
- Federation of Malaya
- UAR, United Arab Republic
- SFRY, The Socialist Federal Republic of Yugoslavia
- CSSR, Czechoslovakia
- SMOM, Sovereign Military Order of Malta
- Serbia and Montenegro
- Lapland
- Tibet
- Crimean Tatars
- Transsilvania
- Kurdistan
- Bessarabia
- Duchy of Courland and Semigallia
- Freetown Christiania
- Kingdom of Armenia
- Empire of Brazil
- Inca Empire
- German Empire
- Timurid
- Tuʻi Tonga Empire
- Macedonia
- Republic of Hawaii
- Republic of Texas
- CSA, Confederate States of America
- Kranjska
- Sicily
- Tamil Eelam
- Republic of Venda
- Acadia
- Basque Country
- Catalonia
- Flanders
- Frisia
- Majorca
- Bonaire
- Bohemia
- CAF, Federation of Rhodesia and Nyasaland
- Palma
- Balearic Islands
- Orkney
- SADR, Sahrawi Arab Democratic Republic
- Easter Island
- Galápagos
- Sardinia
- Sint Eustatius
- Union State