The Orion system is a planetary system in Vanduul territory, formerly of the United Empire of Earth (UEE). Armitage (Orion III) was once a recognized planet with Senatorial representation in the UEE. It was also the site of Humanity's violent first contact with the Vanduul in 2681. In 2712, the Vanduul launched a mass invasion that forced the UEE to cede the system.