John Zizka of Trocnov statue in Prague, Vitkov - czech general and Hussite leader. He was famous tactics-master. Žižka s tactics were unorthodox and innovative: In addition to training and equipping his army according to their abilities, he used armored wagons armed with small cannons and muskets, presaging the tank of five hundred years later. He was also a master at using geography to full advantage as well as managing the discipline of his troops.