A Dutch Warmblood is a warmblood type of horse registered with the Koninklijk Warmbloed Paardenstamboek Nederland (Royal Warmblood Studbook of the Netherlands (KWPN), which governs the breeding of competitive dressage and show jumping horses, as well as the show harness horse and Gelderlander, and a hunter studbook in North America. Developed through a breeding program that began in the 1960s, the Dutch are some of the most successful horses developed in postwar Europe.
Prior to World War II, there were two types of utility horse in the Netherlands: Gelderlanders bred in the south under the Gelderlander Horse Studbook (1925) and the Groningen bred in the north under the NWP (1943). The Groningen was, and still is, a heavy weight warmblood horse very similar in type to the Alt-Oldenburger and East Friesian. The Gelderlander, by the same token, was a more elegant variation on the same theme, being often a high-quality carriage horse in addition to a useful agricultural horse. And, while the Groningen were almost unwaveringly solid black, brown, or dark bay, the Gelderlanders were more often chestnut with flashy white markings. These two registries merged to form the Royal Warmblood Horse Studbook of the Netherlands (KWPN).
After the Second World War, the Gelderlander and Groninger were replaced by tractors and cars, and horses began to become a luxury rather than a necessity. As early as the 1950s, stallions like the French-bred L'Invasion and Holsteiner Normann were imported to encourage a change in the type of Dutch horses, followed soon after by the Holsteiner Amor and Hanoverian Eclatant. The carriage-pulling contributed their active, powerful front ends and gentle dispositions to the Dutch Warmblood.