The Hussite movement (1402–85) was primarily a religious, as well as national, manifestation. As a religious reform movement (the so-called Bohemian Reformation), it represented a challenge to papal authority and an assertion of national autonomy in ecclesiastical affairs. The Hussites defeated four crusades from the Holy Roman Empire, and the movement is viewed by many as a part of the (worldwide) Protestant Reformation. Because many of warriors of the crusades were Germans, although many were also Hungarians and Catholic Czechs, the Hussite movement is seen as a Czech national movement. In modern times it acquired anti-imperial and anti-German associations and has sometimes been identified as a manifestation of a long-term ethnic Czech–German conflict.