When the entire city of Galepath was infested by a rebellion of giant yipples in 466 GUE, Dundor lead the armies of Vriminax against the city to free it from the infestation. Faced with heavy fortifications, Dundor of Vriminax ordered his cavalry to advance up the far side of the river. Although the river was too dangerous to ford, Dundor built a bridge under darkness. The yipples were taken completely by surprise as the cavalry was no longer held back by the torrential waters. Thus Dundor bravely crushed the yipples, quashing the rebellion. This great and early battle of the Empire became known as the Yipple Rebellion.

SOURCE(S): New Zork Times 5.4, Zork:Nemesis, A History of Quendor