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Timeline Change Imminent!
This article contains information that no longer applies to the current version of Star Trek Online. The mission has been removed as part of the Romulan Mystery revamp, released with the 5 Year Anniversary Event on January 29, 2015.

Some parts of this mission have been repurposed in the new mission “Desperate Measures”.

In S'harien's Swords the player infiltrates a Romulan space station to halt their research into Borg technology, and destroy any weapons they may have developed from that research.


The player enters the Dimorus System and attacks S'harien Station, disabling the communication satellites and destroying all defending warbirds. Once this is done the player beams aboard and, after activating the turbolifts, captures Commander T'Vrea and questions her about the Borg-enhanced vessels. She reveals that the I.R.W. Esemar has been refitted with the technology and is intended to be the first of a fleet to bring the Romulan Star Empire back to its former glory. She manages to escape to the Esemar and attacks the player's ship. Despite its enhancements the player destroys it, bringing the Romulan development of Borg technology to an end.


Mission Text[]

Starfleet Command has finished its analysis of the information you found in the Hadrian System, and we've reached a decision. We cannot allow the Romulans to continue their research into Borg technology.

We want you to enter Romulan space and proceed to the Dimorus System. Once there, find the ships that the Romulans are building and destroy them. We also want you to stop them from continuing the project, so you'll need to take out their infrastructure and any Borg material they have at that location as well.

It's not Starfleet's policy to make a preemptive strike, but with the war with the Klingons and the threat of what the Romulans could do with this technology, we see this as the best option to save lives.

This ends now, <rank>.


Destroy the Romulan prototypes of Borg weapons and ships in the Dimorus system. The Dimorus system is located in the Tarod Sector of the Iota Povanis[sic] Sector Block.


  • Starbase Assault
  • Infiltration
    • Go To Dimorus Space Station
    • Enable Turbolifts
    • Use Turbolifts
  • Search for the Truth
    • Locate the Romulan Commander
    • Talk to the Romulan Commander
    • Return to Ship
  • Crossed Swords
    • Go To Dimorus Solar System
    • Defeat the Romulan Attackers
    • Return to Sector Space
  • Report to Starfleet




NPC starships[]





  • Light Plasma Cannon Turret
  • Light Tractor Beam Turret
  • Light Disruptor Cannon Turret



Icon Name Description How to Get Points
Kicked While Down in Drydock icon.png Kicked While Down in Drydock Assault the Romulan Space Station 10
Not Meant for Production icon.png Not Meant for Production Defeat the Romulan Prototype Ship 10


For a walkthrough of this mission, visit the Walkthrough page.

Mission Replay[]

This mission is repeatable through Mission Replay, although the Rewards for completing may be reduced. Items scale to a player appropriate level (Scaling Rewards).

Level Rank SP Exp Mark <>
32–39 Captain 1743 1878 VIII
40–49 Rear Admiral LH & UH 1935 1856 X
50 Vice Admiral 2126 1856 XI


v · d · e
Removed Missions
Tour of Duty “Prelude to a Crisis”“Khitomer Crisis”“The Price of Liberty”“Assimilation”“Gather Equipment”“Line in the Sand”“Skills Trainer”“New Orders?”
Tour First City/Tutorial “Honor Bound”“Lighting the Way”“First City”
Klingon War “War is Good for Business”“Hide and Seek”“Stop the Signal”“The Kuvah'Magh”“Treasure Trading Station”“Task Force Hippocrates”“The Ultimate Klingon”“City on the Edge of Never”“Past Imperfect”
Warzone “Test of Mettle”“Second Star to the Right, Straight on 'til Morning”“Keep Your Enemies Closer”
Vigilance “A House Pursued”“House on Fire”
Fek'Ihri Return “The Gates of Gre'thor”
Romulan Mystery “Under the Cover of Night”“Minefield”“Divide et Impera”“Saturday's Child”“Preemptive Strike”“Hunting the Hunters”“Project Nightingale”“By Any Means”“Ground Zero”“Ghost Ship”“Friend of My Enemy”“Taris”“Trapped”“S'harien's Swords”
Cardassian Struggle “Venture into Deep Space”“Badlands”“Suspect”“War Games”“Shutdown”“Rapier”“Forging Bonds”“The Long Night”“The Tribble with Klingons”“Tear of the Prophets”“Crack in the Mirror”“The New Link”“Seeds of Dissent”“The Other Side”“Cage of Fire”
Borg Collective “Collateral Damage”“Asset Recovery”“State of Q”
Undine Advance “Assimilation”“The Return”“Fluid Dynamics”“A Light in the Dark”
New Romulus “Beginning of a New Future”“Lending a Hand”“New Romulus Transporter System”
Delta Quadrant “With Friends Like These...”
PvE/Fleet Actions “Big Dig”“Breaking the Planet”“Distress Call”“DS9 under Siege!”“Fluidic Space Fleet Action”“Foxes and Hounds”“Halting the Gorn Advance”“Mine Trap”“Mirror Universe Incursion”“No Win Scenario”“Punch Through the Federation Blockade”“Slowing the Expeditionary Force”“Starbase 24”“Starbase 24 Rescue”“Terradome (Federation)”“Terradome (Klingon Empire)”
TFO Wrappers “Romulan Imperial Minefield”“Romulan Mystery”“Cardassian Struggle”“Borg Advance”“New Romulus”“Solanae Dyson Sphere”“Delta Quadrant”“Age of Discovery”
Patrol Wrappers “Algira”“Almatha”“Alpha Centauri”“Alpha Trianguli”“Argelius”“Arawath”“Bajor”“Beta Ursae”“Bolarus”“Cardassia”“Celes”“Devron”“Dorvan”“Hromi”“Hyralan”“Iota Pavonis”“Kassae”“Kalandra”“Kern”“Kinjer”“Kora”“Mempa”“Mylasa”“Onias”“Orion”“Orias”“Pi Canis”“Psi Velorum”“Regulus”“Risa”“Sierra”“Sirius”“Tarod”“Tau Dewa”“Teneebia”“Vendor”“Vulcan”“Vanden”“Xarantine”“Z-6”“Zeta Andromedae”
Diplomacy &
“A Good Start”“Chart the Azlesa Expanse”“Chart the B'Tran Cluster” “(Vice Admiral)”“Craft Delta Flyer”“D'kel Star Cluster Exploration” “(Commander)”“Diplomatic Investigations”“Eridon Nebula Exploration: Captain”“Eridon Nebula Exploration: Commander”“Explore Strange New Worlds”“Explore the Afehirr Nebula”“Explore the Arucanis Arm”“Explore the B'Tran Cluster” “(Vice Admiral)”“Explore the Betreka Nebula”“Explore the Delta Volanis Cluster”“Explore the Eridan Belt”“Explore the Hromi Cluster” “(Investigate Anomalous Readings)” “(Investigate Planet)”“Explore the Khazan Cluster”“Explore the Rolor Nebula”“Explore the Zenas Expanse”“Family Ties”“First Contact”“Hostile Takeover”“Outreach”“Quarantine”“Salvage Dispute”“Shady Supplies”“Taste of Home”“T'Ong Nebula Exploration: Lieutenant”“T'Ong Nebula Exploration: Lieutenant Commander”“To Boldly Go”“To Boldly Go: Explore the Afehirr Nebula”“To Boldly Go: Explore the Arucanis Arm”“To Boldly Go: Explore the B'Tran Cluster”“To Boldly Go: Explore the Betreka Nebula”“To Boldly Go: Explore the Eridan Belt”“To Boldly Go: Explore the Hromi Cluster”“To Boldly Go: Explore the Khazan Cluster”“To Boldly Go: Explore the Rolor Nebula”“To Boldly Go: Explore the Zenas Expanse”“The Needs of the Many”“We Need Breathing Room”
Handover/Rank “Aid the Deferi”“Promotion Lieutenant Commander (Klingon)”“Report to Battle Group Omega”