Hungary and Poland have had a common bond for many years, for instance both were ruled by the Jagiellon Dynasty at one point and bother were Catholic nations that faced conflict with the Ottomans to the south and the Holy Roman Empire to the West. Hungary fell under the rule of the Austrians (as did a chunk of Poland, specifically Galicia). Later, during the ensuing post-WWI independence struggles, both Poland and Hungary fought against some other newfounded states (like Czechoslovakia) over pieces of disputed territory. This later manifested in 1938 when as part of the Annexation of Czechoslovakia both Poland and Hungary got a piece of the country. Later, during the German invasion of Poland, the Hungarians neglected to interfere with Polish movement into Poland's ally Romania, which despite later joining the Axis at the time was allied with Poland and provided a gateway for Polish personnel to escape and flee to the West. Essentially, the two countries, despite being neighbors, rarely had territorial or nationalist disputes, the sort of thing which usually pollutes relations between countries. Part of this has to do with the geography of the two countries-Hungary lay primarily in the Carpathian Basin, and was separated from Poland by the Carpathian Mountain range that made travel difficult, thus acting as a natural border between the two countries that neither really anted to infringe. They also shared several common rivals, such as the Ottoman Turks as well as the Soviets during the Cold War. While I would not exactly characterize the relationship to be particularly close, there is certainly very little cause for enmity between the two nations.