Conversation so far:
Which country's civil war was Zizka involved in?
Jan Žižka played a prominent role in the civil wars in Bohemia during the reign of Wenceslas IV.
What were the terms of the armistice of the Hussite Revolution?
During his temporary rule over Bohemia, Prince Sigismund Korybut of Lithuania had appointed Bořek, the lord of Miletínek, governor of the city of Hradec Králové.
How long did the Hussite Revolution last?
The Hussite Wars lasted from 1419 to approximately 1434.
What happened to Jan Žižka during the Hussite Revolution?
Jan Žižka attempted to invade Hungary which was under the rule of his old enemy King Sigismund.
How did the invasion of Hungary turn out during the Hussite Revolution?
The Hungarian invasion campaign was unsuccessful owing to the great superiority of the Hungarians

Question: What did he achieve?
Self-contained rewrite: What did Jan Žižka achieve during the Hussite Revolution?