In an alternate timeline where the Federation starship USS Voyager remained in the Delta Quadrant and formed a new coalition of worlds against the Borg and Species 8472, Haluk's city ship was a Voth starship, a city ship under the command of Sanctioner Haluk. (VOY - Myriad Universes novel: Places of Exile)
In November of the year 2374, the Vostigye Union sent Ambassador at Large Neelix to negotiate with the Voth, which offended the saurians. The Voth Ministry of Elders dispatched the sanctioner to show flag in the Vostigye system. When Haluk demanded the crew of USS Voyager turned over, the Vostigye and their allies assembled a fleet to defend the Voyager crew. The fleet was no match for the advanced starship. Haluk's city ship vaporized Nezu starships with the first shots and hit Ridion starships with their own plasma torpedoes, causing them to blow up. Tarkan and Porcion, and Vostigye ships fired on the invader.
The city ship's transwarp signature attracted a trio of Scourge bioships, which attacked the city ship. Voyager and its allies moved to defend the city ship while its crew evacuated to the habitat spheres around the Birthworld. Escape pods were launched before Haluk engaged his ship's self-destruct mechanism. The valorous action of the allies paved the way for the founding of the Delta Coalition in February 2375 and the opening of diplomatic relations with the Voth. The sanctioner survived and assumed command of a Bulwark-class battleship. (VOY - Myriad Universes novel: Places of Exile)