Second Fleet
From Halopedia, the Halo wiki
The Second Fleet was a United Nations Space Command starship fleet of unknown size.
It participated in the Second Battle of Earth on November 3, 2552.
Sergeant Laura "Smokes" Tanner, while piloting Blue Team to the Centennial Orbital Elevator, mentioned that recently the Covenant fleet had engaged the Second Fleet, together with the Seventh and Sixteenth Fleets, and were in major skirmishes in Earth orbit.
Whether the fleet remains intact is unknown.
