Gedna Tachion was a Romulan/Human Starfleet Command Officer in the 24th century, commanding two escorts, a destroyer, and a heavy cruiser during his forty-plus year career.

He was known among his fellow officers as a brilliant tactician as well as a superb mentor to junior officers.  Many commanding officers fought over his former crew members.

Early LifeEdit

He was born to Jason Tachion and Relivi, a Romulan exile in the wake of the Tomed Incident in 2313 on Coridan.

He grew up learning the family business and about his Romulan heritage from his mother and grandfather, a former Romulan Star Navy Centurion Sutrev.

In 2332 he attended the University of California, studying geology and business administration, though he left after  Academy his freshman year for Starfleet.

Starfleet AcademyEdit

In 2333, against his father's wishes, Tachion entered Starfleet Academy. Within twenty minutes of setting foot on the grounds, he broke the jaw of a Vulcan 3rd Year Cadet, claiming that she had made a speciest slur about his heritage. It was the first of many fights he would get into over the subject.

Along with Cadets Shivvar th'Zaavreth, Spovik, Emtred Macik and Deisha Sillngford he was part of Omicron Squad.

He was originally a Science Cadet specializing in geology, but in his second year, he switched to Security. He had specialized training in using shipboard weapons to support planetary combat operations, as well as ground-based heavy weapons, including the photon mortar.

In 2335 he spent his cadet cruise aboard the USS Stargazer. During that time the ship conducted several warp field experiments and patrolled the Federation-Cardassian border.

Early CareerEdit

After graduation, he attended Starfleet's Advanced Tactical Training, with an emphasis on tactical ordnance, before being assigned to the USS Gettysburg as Phaser Control Assistant Division Officer.

In 2340, during a patrol of the Federation-Cardassian border, the Gettysburg was severely damaged during a battle with a pair of Cardassian frigates. Phasers were offline, but Tachion managed to channel battery power from an escape pod for two phaser blasts, enough to drive the Cardassian vessels off.

In 2343, after being promoted to full Lieutenant, he transferred to the UFP's Quo'nos Embassy. He spent the first year on the Federation Ambassador to the Klingon Empire Curzon Dax's security detail.

When the Romulans attacked Narenda III he headed the security team for Federation relief efforts. He worked closely with KDF personnel during this time, making several friends despite his heritage.

After the Romulan attack on Khitomer, he headed a classified Starfleet mission: a strike on a Romulan target, made to look like a  Klingon reprisal.  This attack took out several sensor girds, allowing Starfleet Intelligence to insert eighteen unmanned probes deep into Romulan space for the first time in decades.

Before transferring to Starbase 76 as Chief of Security, he escorted Ambassador Dax to K'mpec's coronation as Chancellor of the Klingon Empire.

He was promoted to Lieutenant Commander in 2349.

USS AmbassadorEdit

In 2351 he transferred to the USS Ambassador as Chief of Security and Second Officer prior to vessel resupplying the Federation colony on Dorvan V.  When the ship moved on to the next colony, he and Ensign Chakotay stayed behind with a shuttle to upgrade the planet's defense grid.

During the Tzenkethi War, while leading a team to secure a hospital against an oncoming Tzenkethi armada, he was forced to lead his team and a large group of patients that hadn't been evacuated into a bar a few blocks away. They holed up for five days, defending it against enemy ground forces. Unknown to him at the time, his actions kept the force he was engaging from pursuing fleeing civilians. He was awarded the Starfleet Citation for Conspicuous Gallantry and promoted to Commander for his actions.

During a thirteen-month refit of the Ambassador at Utopia Planitia in 2355, he taught two courses on Starship Tactics at Starfleet Academy.

He attended the commissioning of the USS Cheyenne while there.

In 2357 he became XO of the USS Ambassador the same day the vessel responded to the Talarian on Galen IV.

USS VigilantEdit

In 2361 he assumed command of the escort USS Vigilant.

He recruited several former for his senior staff, including Roger Deict, Kolp and Renee Boyce.

The ship was destroyed in 2364 in a battle with eight Cardassian vessels. Tachion underwent a very public and brutal trial for the loss of the ship, but was cleared in the end and awarded the Grankite Order of Tactics with the Class of Excellence and offered command of USS Drake.

He turned down the command and instead became a Strategic Operations Officer at Starfleet Command, a position which had him reacting to different trouble spots across the Federation.

USS ConstantineEdit

In early 2365 he embarked on a classified mission aboard the USS Constantine.

Later that year he turned downed command of the USS Aries.

Wolf 359Edit

When the armada met the Borg Cube at Wolf 359, Tachion was on temporary duty as Strategic Operations Officer aboard the USS Endeavour, the only ship to survive the battle in spaceworthy condition. After the death of the XO and Captain Amasov being taken to sickbay, he allowed the ship's second officer, Lieutenant Commander Kiva, to assume command even though he was higher ranking. Instead, he manned Tactical as the USS Endeavour limped out of the battle.

In testimony after the battle, he said he disagreed with the decision to flee and that regrouping with the arriving USS Enterprise-D and other reinforcements would have been a better decision. Kiva felt that this testimony kept him from an XO slot, and the two did not speak again until 2371.

Shortly afterward, he turned down command of the USS Norseman, a Norway class destroyer.

Defiant Class ASDBEdit

In the aftermath of Wolf 359, several officers who had survived the battle were called together to design a new type of heavy escort at Utopia Planitia, the Defiant class, under Admiral Batelle Toh. Tachion submitted a design for a high-speed torpedo vessel, but a more compact design was ultimately chosen. However, against his wishes, the design was eventually used for the Nova class.

Prior to the Dominion War, five Nova class vessels were constructed according to his original design, including the USS Lonestar.

After the Defiant Project was shut down, Tachion returned to Starfleet Academy to accept the chair of the Starship Tactics Department.

In 2368, he was head of a special team of instructors tasked with retraining the officers from the USS Bozeman that chose to continue serving in Starfleet.  He was also instrumental in recruiting engineering cadets to aid in the ship's refit.  Afterward, he was assumed command of one of the Academy's training vessels, the USS Republic.

In 2369 Tachion was promoted to Captain and temporarily assumed command of the USS Cairo while Captain Edward Jellico transferred to the USS Enterprise-D. He stood off three Cardassian light cruisers in the Saltok System. During his time in the ship's center seat, he first met Seff O'Rourke, who would end up serving under him aboard the Lionheart and on several missions during the Dominion War.

When Jellico returned to the Cairo Tachion resumed his teaching post at the Academy.

USS LionheartEdit

In late 2370, the Dominion threat drove to the reactivation of the Defiant Project. Six ships were ordered constructed immediately and Tachion was given command of the third spaceframe, being constructed at the New London Fleet Yards. ("New Orders")

Prior to leaving Earth to assume command, he had a private meeting with Fleet Admiral Yoshi Fukazima, Chief of Fleet Operations.

("Homecoming") ====Romulan Neutral Zone  ====



USS BrazenEdit

In mid-2373, after Deict was arrested for treason, Tachion was informed that he was being transferred immediately to the USS Brazen as Commanding Officer.  He and his belongings were quickly moved via a site to site transport, and the Brazen left the starbase within forty-five minutes of his arrival.

Later that year the Brazen led a task force to the Demilitarized Zone to evacuate colonists and Maquis during a Dominion genocide.  ("Exodus")

Dominion WarEdit

The Brazen, along with most of the Seventh Fleet, was lost at the Battle of Tyra in early 2374.  Tachion and eight others managed to survive by ejecting the bridge module.  They were taken prisoner by Dominion forces.

They ended up at a Dominion Prisoner of War Camp, along with others from previous battles.

After his rescue, he and Seff O'Rourke took part in several missions for Starfleet Special Operations.

By stardate 51893.2 he was back in the center seat of the Lionheart, which served as Commodore Nikolas Stone's flagship during the Third Battle of Vulcanis.

Upon the return of the Sixth Fleet's task force to Prophet's Landing, he was placed in command of the USS Camelot, which would serve as Stone's flagship for the rest of the war.


His father Jason Tachion was heir to vast dilithium mining and shipping operations on Coridan. The family had moved there shortly after the Romulan attack in 2155.

His mother was Relivi a Romulan exile who was smuggled out of the Empire by Starfleet Intelligence in return for her father, Centurion Sutrev turning over the remains of a cloaked and hidden Romulan Star Navy Frigate.

Subcommander Modex, commander of the Romulan Star Navy Destroyer Shrike, was a second cousin. The two first met when the Lionheart came across a derelict Warbird in 2371.


Starting during his Freshman year at Starfleet Academy he was involved on and off again with fellow cadet Patricia Rivers, who would later command the USS Hargrave, with which she would transport him to take command of the Lionheart in 2371.

In 2363 he married Lieutenant Commander Miranda Garrett, the older sister of his former USS Ambassador shipmate and friend Ronald Garrett. They lived in a condo in the California city of Half Moon Bay, 25 miles south of San Francisco.  While he was at Starfleet Command she was part of the construction crew of the Nebula class USS Melbourne.  Unfortunately, she was aboard the ship when it was destroyed at the Battle of Wolf 359, serving as Captain Thomas Halloway's XO when it was hastily launched from Utopia Planitia to confront the cube.

While teaching at Starfleet Academy in 2370 he began dating Elizabeth Decker, a reporter for FNS, but ended things when he was offered command of the USS Lionheart.


Benjamin Sisko

Tachion and Sisko were introduced by Ambassador Curzon Dax during the memorial ceremony for those killed by the Borg in 2367. Later, while designing the Defiant class the two widowed officers found comfort in each other's company, which then extended to a friendly rivalry to earn command of the prototype vessel. The friendship would be renewed in 2371 when they worked together to get the USS Defiant spaceworthy to prove to Starfleet Command the class should be put into production.

Ronald Garrett

While awaiting the USS Ambassador to pick him up at Starbase 76, Tachion met then Lieutenant Ronald Garret, the ship's Navigation Officer, returning from leave on Earth. The two spent their downtime playing poker.  Eventually, Tachion married Garret's older sister Miranda, and in 2371 recruited his son, Lieutenant Junior Grade Michael Garrett, as Navigation Officer of the USS Lionheart.

Thomas Riley

Then Lieutenant Riley was Chief Engineer of the USS Ambassador when Tachion came aboard, and close friends with Ronald Garrett. However, since Garrett was married, Riley and Tachion often excluded him from some of their shore leave activities. In 2371 Riley, now a Captain was CO of Starbase 315 and the New London Fleet Yards where the USS Lionheart was being constructed. Still a bachelor, he welcomed his friend for the duration of the construction project.

Roger Deict

He first met the young engineer while aboard the USS Intrepid immediately following the Khitomer Massacre, and again on the USS Ambassador. Deict was part of the team Tachion was stranded with on Amoz III and defended a bar against the Tzenkethi invaders.

Tachion brought him aboard the USS Vigilant as Chief Engineer, and again when he assumed command of the USS Lionheart. On both vessels, he was one of the few things Tachion could always rely upon.

Renee Boyce

She was a physician at the hospital on Amoz III and stayed with the patients that couldn't be evacuated at the bar. During the five day standoff, she was so impressed with the Starfleet crew's actions she applied to Starfleet Officer Candidate School.  When Tachion assumed command of the USS Vigilant, he brought her aboard as Chief Medical Officer, and again aboard the USS Lionheart.

Nikolas Stone

After the betrayal by his Operations Officer during the Maquis hijacking of the Lionheart in 2371, Stone was her replacement. Taking note of the Human/Vulcan hybrid's quick thinking and grasp of tactics he mentored the officer and made him his XO in late 2372. Stone would succeed him as the Lionheart's CO in 2373.

Seff O'Rourke

When the young pilot came aboard as his murdered godson's replacement, he wanted to hate him, but instead, the Kelt ended up as a surrogate son alongside Nikolas Stone. 

The pair would end up feuding over Roger Deict's death in 2372, but come to terms while in a Dominion POW Camp.  They would later perform several special operations together during the war.

Community content is available under CC-BY-SA unless otherwise noted.