Unnamed Sovereign class starships

This is a list of unnamed Federation and Terran starships of the.

By year
In 2374 and 2375, deposed Emperor $𝜇$ of the Terran Empire intended to duplicate the captured USS Enterprise (NCC-1701-E) and its first copy, the, in the Goldin Discontinuity in the mirror universe, in order to defeat the Klingon-Cardassian Alliance with a fleet of Sovereign-class starships. 

In 2376 and 2377, dozens of Sovereign-class battleships were involved in conflicts to defend the Federation from Borg Collective, Undine and Cardassian incursions and attacks. 

By 2380, the Starfleet had access to no more than fifteen Sovereign-class starships, including the USS Enterprise (NCC-1701-E). Zelik Leybenzon noted that fact when countless Sovereigns from other quantum realities appeared through a quantum fissure at Gorsach IX. 

Alternate timelines
In one permutation of the Kelvin timeline, the Klingon Empire responded to the 's diplomatic overtures to the Dominion invading from the Gamma Quadrant with war. At least two Sovereign-class starships took part when made its last stand against the Klingons at Wolf 359 in the 2330s or 2340s decade. Klingon birds-of-prey destroyed both ships, and Starfleet lost. 

In one permutation of the mirror universe, purple Sovereign-class assault cruisers were part of Captain James O'Brien's fleet harassing civilians and trade lines during incursions into the primary universe in 2409. 

In another permuation, yellow-clad Sovereign-class star cruisers assaulted Vauthil Station and as part of a Terran invasion. They were repelled alongside the rest of the Terran fleet by a flotilla of Allied ships. 

From 2409 to 2411, the red-coated Sovereign-class ships of Admiral $𝜇$ also attacked Vauthil Station and the Badlands region, and were repelled by a squadron of Alpha Quadrant Alliance ships. 

In the 26th century, ships of this class participated in the Battle of Procyon V in the 26th century, against the Sphere Builders and their Temporal Liberation Front allies. ({{STO|sub=Future Proof|The Battle of Procyon V|{{stod|Ragnarok}})