Step-by-step explanation:
The people of early Java did not defeat the Mongols because the Mongol Empire did not expand its territory to Java or other parts of Southeast Asia. The Mongol Empire, led by Genghis Khan and his successors, focused primarily on expanding into Central Asia, China, the Middle East, and Eastern Europe.
The Mongol Empire did send envoys to Java in the 13th century to establish diplomatic relations and explore potential trade opportunities, but they did not attempt to conquer the region. Therefore, the people of early Java did not have to defend themselves against the Mongols