UNSC Trafalgar
From Halopedia, the Halo wiki
The UNSC Trafalgar was the pride of the UNSC navy. One of the only supercarriers, Trafalgar was one of the mightiest ships in the UNSC. The Trafalgar also fought in a large number of battles aganst the Covenant. It was destroyed at Reach during The Battle of Reach in 2552.
