Dutch Empire lost a number of its colonial possessions and trade monopolies to the British Empire. Nevertheless, major portions of the empire survived until the advent of global decolonisation following World War II (1939–1945), namely the East Indies (Indonesia) and Dutch Guiana (Surinam). Three former colonial territories in the West Indies islands around the Caribbean Sea—Aruba, Curaçao, and Sint Maarten—remain as constituent countries represented within the Kingdom of the Netherlands. The territories that would later form the Dutch Republic began as a loose federation known as the Seventeen Provinces, which Charles V, Holy Roman Emperor and (as "Carlos I") King of Spain,
British Guiana United Kingdom on 26 May 1966. The English made at least two unsuccessful attempts in the 17th century to colonise the lands that would later be known as British Guiana, at which time the Dutch had established two colonies in the area: Essequibo, administered by the Dutch West India Company, and Berbice, administered by the Berbice Association. The Dutch West India Company founded a third colony, Demerara, in the mid-18th century. During the French Revolutionary Wars of the late 18th century, when the Netherlands were occupied by the French, and Great Britain and France were at war, Britain took over