Which country has a law to ban the importation of horses to maintain pure bloodlines?

Iceland is unique in its approach to horse breeding and importation. The country has enacted laws that specifically prohibit the importation of horses from other countries in order to protect and maintain the purity of its horse breed, the Icelandic horse. This breed is celebrated for its unique characteristics and has been isolated for centuries. As a result, any horse introduced from outside could potentially bring new diseases or dilute the genetic pool, which is why Iceland has strict regulations in place.

The Icelandic horse cannot be exported from the country once it has left, ensuring that any animals raised in Iceland keep to the established bloodlines. This practice reflects Iceland's commitment to preserving its cultural heritage and the qualities that make the Icelandic horse distinctive, such as its specialized gaits and robust health.

In contrast, the other countries mentioned do not have such stringent laws regarding the importation of horses for the similar purpose of protecting bloodlines. While they may have regulations concerning animal health and welfare, they do not restrict the importation of horses to the same extent as Iceland.