The First World War devastated Hungary and, with it, the Vizsla breed. They were perilously close to extinction and it was the unified efforts of five breeders in Hungary that kept the breed alive. Despite this, the breed was still only kept within the nobility of Hungary. It was not until after 1945, when the Russians entered Hungary, that the breed was taken out of the country. The nobility fled and took their Vizsla with them. As a result, the breed continued to be bred in other neighbouring countries.