Battle of Koba

Prelude
In the immediate aftermath of the First Battle of Kadesh, the combined Federation/Romulan forces were left debating how to proceed given the casualties the fleet had already suffered. It was at this point that the surviving Kadesh forces made contact with the joint fleet, and in the following discussion, an alliance was agreed to. With the bulk of the Kadeshi fleet remaining behind to guard the disabled Federation and Romulan vessels, the combined Federation/Romulan/Kadeshi forces set out for the gas giant of Koba, where a Biophage shipyard laid in orbit.

The Battle
Despite being outnumbered, the initial clash favored the allied forces as both the Kadeshi and ex-Kadeshi ships lacked shielding technology. Several Biophage ships were hit in the opening strike, with three of their frigates outright destroyed by the Courageous, the Centaur and a Bird-of-Prey.

Fire continued to be traded between the two forces, with one of the Kadeshi frigates destroyed and the Watchkeeper focused upon by the Biophage ships. A fierce counterattack from the allied forces followed, with two ex-Kadeshi frigates taken out and the Excelsior firing the disabling shot on the first of the Biophage infected motherships.

Though it seemed like the tide was turning to favor the allied fleet, the Biophage kept up their own attacks as the battle went on even as they lost another frigate. The Yukikaze, the T'Mir, and the Challorn had all lost their shields at this point, with the later even taking heavy hull damage though thankfully without any causalities. The Watchkeeper on the other hand remained the focus of several Biophage attacks, with its lack of shields doing nothing to stop its own crew losses.

By this point however, the accumulated damage taken by the Biophage infested ships had built up too much. Though the Watchkeeper would be taken out in the process, the disabling of two Biophage cruisers and one of their frigate signaled a turning point as the joint fleet pressed their advantage. The last two infected motherships were disabled in short order, and the rest of the Biophage vessels wiped out soon after.

Aftermath
While the Federation and Romulan forces had gotten off with no losses, save the Challorn's hull damage, the same could not be said for the Kadeshi. The Watchkeeper was reduced to little more than a shell, with only 450 out of 2250 of its crew fit for duty.

Despite that though, the Biophage controlled shipyard was successfully destroyed, allowing the combined fleet to finally turn towards the world of Kadesh, where the ex-T'Seren, ex-Miracht, and ex-Terrh were detected in wait. This would in turn lead to the Battle of Kadesh Orbit.