The crusade of Nicopolis, in 1396, intended to expel the Turks from the Balkans, but it ended with the disastrous defeat. Sigismund of Luxemburg, the King of Hungary and Holy Roman Emperor, achieved much to fortify the southern border of Hungary and he had the power to mobilize the unwilling Hungarian nobility when it was needed. After his death none of his successors to the throne was able force his will upon the nobility to react on the growing Ottoman threat. In these critical times, János Hunyadi, born from low nobility, was the only person who was able to present the skills and capabilities which could balance the expansion efforts of the Ottoman Empire in the Balkans. By using his experiences gained in the condottiere wars in Italy and in the Hussite Wars in Bohemia, he was able to defend the Hungarian borders, and successfully attacked the Turks on their territory. For his outstanding performance on the frontier of Europe he earned the honorable "Defender of Christendom" title. Without the achievements of János Hunyadi between 1439 and 1456, Hungary could not have been the defensive Bastion of Europe.