The UIA was founded by Widow and her followers on Imperial Worlds, to fight against the Galactic Alliance. Under its former leadership the United Imperial Alliance believed in being neutral with everyone, a choice that eventually failed with the UIA's war against the Galactic Alliance, as well as commandos from the UIA attacking settlements on Rhen Var. The Imperial headquarters was located on the planet of Hoth. Its exact location was mostly unknown bexcept to those who were invited to it. Their base was located supposedly within just a few short miles from the Dha'oya'karir Mandalorian Camp