In the Generation 2 comic series, Jhiaxus holds the rank of Liege Centuro of the Cybertronian Empire - an offshoot faction which came to power during the Autobots and Decepticon's 4 million year hibernation on Earth prior to 1984.
The pursuit went bad when both Autobots and Imperials flew into a sector of space inhabited by psychic parasites that fed off violent feelings.