Second Ulin'talag was a Jem'Hadar soldier who served during the first month of the Dominion War. He served under First Teron'tokal and Vorta overseer Yelgrun, who commanded a patrol sent to monitor the activities of the USS Lambda Paz, which was dispatched to the Tong Beak Nebula to verify intelligence that a Jem'Hadar breeding facility was being built on a planetoid in the nebula. Believing that he and his fellow troops were protecting unborn Jem'Hadar, Ulin'talag was uncertain that passive monitoring would assure the success of the mission to lure Starfleet into an ambush, considering the Starfleet ship would leave and come back with reinforcements. As a result, Ulin'talag dispatched the fighter he was commanding to shoot down the shuttles dispatched to take a closer look at the surface.