USS Calvary
From Star Trek: Theurgy Wiki
The USS Cavalry was a Sovereign class Federation starship operated by Starfleet in the late 24th century. Despite indications that the Cavalry travelled back in time from the 2390’s, there is no evidence that this happened in the Star Trek: Theurgy timeline. Whether or not this is due to the Butterfly Effect has not been determined.
In 2370 an officer with the first name Ethan graduated from Starfleet Academy and was assigned to the Cavalry.
In 2371 Ensign Zephyr Praise was assigned to the Cavalry allowing her to reunite with her classmate and paramour Ethan.
In 2372, the USS Cavalry encountered a hostile incorporeal entity known as the Wanderer that claimed to have devoured planets. Ensign Praise managed to distract it allowing the ship’s engineers to trap it and drive it off the ship. For her brave actions, Ensign Praise received the Starfleet Commendation Medal and a promotion to lieutenant (junior grade). It was this incident that led to Zephyr Praise being offered a department head position aboard the USS Pegasus in 2373.