Galactic Imperium (168 ABY)

The Galactic Imperium, also called the Sith Imperium, New Galactic Empire, and New Sith Empire, was a government established by Empress Allya Pallopides in 167 ABY, though it was really by order of the One Sith Remnant. Sometime after 138 ABY, the Fel dynasty was overthrown in a coup and the Fels were replaced by Allya Pallopides and her family, who were descendants of, a niece of Palpatine. The Empress had the Empire exit the Galactic Federation Triumvirate, which prompted the remainder of it to reform into the Third Republic. The One Sith Remnant negotiated secretly with Empress Pallopides, who allowed them to attain high positions in the Empire. By 168 ABY, she was essentially their figurehead. That year, after tensions with the Republic, the Imperium declared war on them.

During the Second Hyperspace War, the Imperium fought the Third Republic and the New Jedi Order, as well as several other third parties.