In the year 2367, the Trager was involved in skirmishes with the USS Enterprise-D and the rogue USS Phoenix. (TNG episode: "The Wounded") During the Cardassian Union's alliance with the Dominion, the Trager was one of twenty Galor-class vessels that were outfitted with Dominion transporter as well as sensor technology in an attempt to incorporate the Cardassian Guard with the Jem'Hadar fleet. These sensors and transporters would later come in handy during the evacuation of the Europa Nova colony. (DS9 - Gateways novel: Demons of Air and Darkness)