The First Battle Group was the first assembled TDA war fleet of the Laguna Wars, assembled in late 2219 from the Fourth and Seventh Fleets. It was commanded by a single Commander-in-Chief aided by the fleet commanders, Marshals Keyes and Fodor. It was decimated in the First Battle off Laguna 9 and retreated to Petersen 3.
The First Battle Group consisted of 82 capital ships in total:
- 12 battleships
- 8 Space-Interceptor Carriers
- 8 Atmo-Interceptor Carriers
- Troop carriers
- Supply ships
- Repair ships
- Ground-Attack Craft
Additionally, there were at least 62 interceptors in the group.
In the First Battle off Laguna 9, the group lost 62 interceptors, 18 out of its 40 fighting ships, and at least one fighting ship disabled. Additionally, the commander-in-chief apparently was killed, as Fodor and Keyes had assumed joint command by the battle's end.