Star Trek: The Lionhearted Wiki

Josii Petross was an unjoined Trill serving in the United Federation Marine Corps during the late 24th century.

In 2373 she enrolled in Starfleet Academy as an Operations Cadet. However, when the Dominion War broke she decided not to wait three and a half years and enlisted in the United Federation Marine Corps.

In 2374 she held the rank of Corporal and was the communications specialist Marine Raider team fighting on Paxil V.

Gedna Tachion used the team to destroy a Ketracel White pipeline behind enemy lines. ("Battlefield Lullaby")

Shortly afterward she was promoted to Sergeant.

Towards the end of the war, her Raider team was recruited by Peter Madison to rescue a high-level Starfleet Intelligence operative deep in Dominion space.

By 2377 she had attended Officer Candidate School and was commissioned as a Second Lieutenant.