1754 - 31 March 1917
Unincorporated territory of the United States of America - US
The islands of St. Croix, St. John and St. Thomas became
a Danish colony in 1754, but were occupied by Britain on two occasions
in the early 19th century.
On 12th December 1916 or 17th January 1917 (sources
islands were sold to the United States of America for $25m.
US were worried that if Denmark were to be captured by Germany, the
islands could be used as a U-boat base, within easy reach of both the
USA and the Panama Canal Zone.
Denmark officially handed over the islands on 31st
1917 and they became the unincorporated territory of the US Virgin