Battle of Nicopolis
In 1396, Mircea participated in an anti-Ottoman crusade started by Hungary's monarch. The crusade ended with the Ottoman victory at the Battle of Nicopolis on September 25. In the next year, 1397, Mircea, having defeated Vlad the Usurper with Hungarian help, stopped another Ottoman expedition that crossed the Danube, and in 1400 he defeated yet another expedition of Turks crossing the country.