The Mandalorian Outpost of Dxun was the Mandalorian Neo-Crusaders' headquarters during the Mandalorian Wars, a sprawling complex that was built amidst the dangerous jungles of the moon of Onderon. In the year 3996 BBY, Mandalore the Indomitable, Lord of the Mandalorian Clans, was slain by Drexl beasts during Fourth Battle of Onderon at the end of Great Sith War. While searching the untamed wilderness of Dxun for his remains, a Mandalorian Crusader discovered and claimed the legendary Mandalore's Mask. In time, the Crusader would rise to power as Mandalore the Ultimate.