The Mandalorian Empire, also known as the Mandalorian Order, was once a vast empire ruled by leaders of the planet Mandalore.
The Empire was formed when, after years of infighting, thousands of Mandalorian clans were brought together. Around the time of the Great Expansion, the Empire prospered and became known in the galaxy for its absolute rule. Even millennia after its fall, the warrior culture and traditions of the Mandalorians were aided by their former Empires' reputation.
The Mandalorian Empire was defeated at the end of the Mandalorian Wars, leaving much of its territories to align themselves with the Old Republic.