2401 - 2410

2401

• The Stargazer Incident: A massive spatial anomaly prompts an investigation by the U.S.S. Stargazer. A modified Borg Queen beams aboard, attempting to link with the Federation armada, forcing Jean-Luc Picard to trigger the ship's self-destruction to prevent a fleet-wide breach.
  • Following the Stargazer detonation, Picard's consciousness is briefly displaced by Q into a totalitarian alternate timeline, exploring systemic personal and historical points of divergence before restoring the proper prime reality. Picard and his crew complete a temporal incursion to help safeguard the Europa Mission and Picard's ancestor, Rene Picard. Captain Cristóbal Rios chooses to remain in the past.
  • Following the resolution of the anomaly crisis, a unique, benevolent offshoot faction of the Borg Collective — led by an assimilated Agnes Jurati - is granted provisional membership within the United Federation of Planets to guard a mysterious transwarp conduit.
• The Frontier Day Cataclysm:
  • Dr. Beverly Crusher sends an encrypted distress signal to Jean-Luc Picard. Picard and William T. Riker requisition the U.S.S. Titan-A under Captain Liam Shaw, entering the Ryton system where they are ambushed by the rogue vessel Shrike, commanded by Vadic. Crusher and her son, Jack, are rescued by the Titan while Ensign Eli Foster is revealed to be a rogue Changeling working for Vadic.
  • The Titan rendezvous with the U.S.S. Intrepid where Commander Ro Laren reveals to Admiral Picard that Starfleet Command has been infiltrated by the Changelings. Shortly afterward, Ro is killed and the Titan crew framed.
  • Commander Data is resurrected in a golem body while his brothers, B-4 and Lore, are killed in the process. Vadic is killed aboard the Titan.
  • Starfleet convenes over Earth to celebrate its 250th anniversary using an automated "Fleet Formation" architecture.
    • Conspirators utilize compromised Starfleet transporter architecture to rewrite the genetic code of personnel under age 25 with latent Borg DNA. Using Jack Crusher as a biological transceiver, the Collective assumes absolute control over the younger officers.
      • Captain Liam Shaw is killed
  • To combat the completely compromised automated armada, Picard and his veteran bridge crew recover the U.S.S. Enterprise-D from the Fleet Museum, pressing the historic Galaxy Class starship back into active combat service.
    • Navigating to a massive Borg beacon hidden inside Jupiter's atmosphere, the Enterprise-D crew destroys the transceiver signal. The original Borg Collective is completely annihilated, breaking the hive mind lock and freeing Starfleet.
• Presidential Transition: President Anton Chekov is tragically killed during the automated fleet's bombardment of Earth; Aennik Okeg is subsequently elected as the first Saurian President of the United Federation of Planets.
• The Konjah Exposure: Following an ambush by Lethean mercenaries, Councilor Konjah of the Klingon High Council is biologically unmasked as a shape-shifting Undine infiltrator, triggering widespread political paranoia across the Empire and resulting in the destruction of his house.
• The Joint Council Petition: A prominent contingent of Starfleet heavyweights — including Admirals Beverly Crusher and Kathryn Janeway with Captains Chakotay, Dax, and Worf — petition the Federation Council to reconsider its neutrality in the Klingon-Gorn war, but the petition is rejected.

2402

• The Fleet Museum Integration: Having completed its final tactical mission to save Earth, the meticulously restored U.S.S. Enterprise-D is permanently decommissioned and installed in the central hangar of the Starfleet Fleet Museum at Athan Prime.
• The Commissioning of the Enterprise-G: In honor of the late Captain Liam Shaw's final commendation and the efforts of the crew of the Enterprise-D, the severely damaged U.S.S. Titan-A is fully repaired, refitted, and officially rechristened as the Neo-Constitution class flagship U.S.S. Enterprise NCC-1701-G, launching on a five-year mission under Captain Seven of Nine.
• The Abduction of Miral Paris: During her senior cadet training cruise aboard the U.S.S. Christopher Pike, a radicalized Klingon religious sect attempts to abduct Miral Paris, believing her to be the prophesied Kuvah'magh. The kidnapping is foiled by Starfleet.
• Synthetic Labor Reactivation: To support massive post-crisis starship construction and infrastructure repair efforts across the Federation, the foundational A500 android schematics are safely reactivated under strict ethical oversight.
• Picard's True Retirement: Citing mounting health and personal reasons, Jean-Luc Picard steps down from his final diplomatic posting, retiring permanently to his family estate in La Barre, France.
• Lorian First Contact: Operating on long-range exploration protocols, the U.S.S. Voyager successfully establishes the Federation's formal first contact with the reclusive Lorian civilization, discovered to be a genetic offshoot of the ancient Xindi.
• The Gorn Blockade: Escalating their containment campaign, a massive armada of Klingon and Orion fleets breaches Gorn defensive lines, establishing a total orbital military blockade around the Gorn homeworld.
• The Sela Coalition: A faction of high-ranking Romulan military officers, fiercely opposed to the autocratic rule of Praetor Taris, establishes deep-space contact with Sela, offering her their total military asset support to back an empire-wide rebellion.

2403

• The Overthrow of Rator III: Sela leads a massive vanguard armada of Romulan loyalists and Hirogen mercenaries directly to the capital planet of Rator III. Finding Praetor Taris has vanished into hiding, Sela successfully seizes control of the Romulan Free State and is confirmed as Praetor by the Senate.
• Loss of the Rapier: The prototype escort vessel U.S.S. Rapier, packed with Starfleet's most advanced experimental next-generation weapon systems and defensive technologies, enters the Bajoran Wormhole on a charting mission to the Gamma Quadrant and vanishes.
• Fall of the Hegemony: Klingon Defense Forces completely breach the defenses of the Gorn Hegemony, forcing an absolute surrender. The Gorn homeworld is occupied, and Chancellor J'mpok publicly executes more than a dozen high-ranking Gorn leaders exposed as infiltrators.
  • King Slathis agrees to terms, allowing the Gorn Hegemony to retain limited internal self-rule under an imperial military governorship, provided they swear absolute fealty to the Klingon Empire on a yearly basis.
• The Federation Denunciation: The Federation Council, deeply appalled by the sweeping violence and orbital destruction of the Gorn invasion, issues a stinging public denunciation of the Klingon Empire's unilateral actions.
• The Mission of Kahless: The cloned Emperor Kahless assembles a highly specialized crew of seasoned Klingon warriors from the prestigious Order of the Bat'leth, departing Imperial space on a highly classified, undisclosed mission into deep space.

2404

• Romulan Senate Manipulation: Safely entrenched as Praetor, Sela subtly manipulates the internal mechanics of the Romulan Senate, dissolving democratic concessions to further her long-term imperial goals.
• The Holographic Injunction: Seeking transparency following recent artificial intelligence breakthroughs, the Soong Foundation files a sweeping petition with the Federation Judiciary, demanding Starfleet legally reveal the deployment conditions of all holographic personnel in its employ.
• The Hromi Cluster Ultimatum: Reaffirming ancient territorial claims to secure borders against perceived external manipulation, Chancellor J'mpok informs the High Council of his intent to reclaim the Hromi Cluster. The Federation is given a strict 90-day ultimatum to evacuate all citizens and assets.
  • The U.S.S. Atlantis is deployed to the sector to lead the massive, logistical evacuation effort of Federation civilians from the disputed border zones.
• Presidential Re-election: Navigating the early stages of the border crisis, President Aennik Okeg wins a highly successful campaign, securing election to his first full term as President of the United Federation of Planets.

2405

• The Second Federation-Klingon War Begins: Open conflict officially begins as the Federation refuses to vacate the Hromi Cluster. Heavy Klingon and Gorn forces launch an orbital invasion of Korvat Colony, forcing Starfleet to drop its containment pickets and establish a military blockade.
• The Defense of Sherman's Planet: The U.S.S. Atlantis is rapidly redeployed to Sherman's Planet for heavy colonial defense. Combined Starfleet elements successfully repel a brutal secondary invasion force composed of Klingon and Gorn vanguard warships.
• Nausicaan Fealty: The Nausicaan government signs a formal, comprehensive non-aggression pact with the Klingon Empire, officially pledging their warrior tribes to the KDF and denying Starfleet a critical mercenary recruiting sector.
• The Gin'tak Appointed: Worf officially accepts a request from Patriarch Drax to become the gin'tak (supreme advisor and counselor of honor) to the noble House of Martok during the outbreak of interstellar war.
• Ferengi Neutrality Secured: Grand Nagus Rom is forced to halt his long-term plans for a formal Federation alliance due to aggressive, overwhelming political opposition from the conservative Ferengi Economic Congress.

2406

• The Archanis Sector Invasion: Breaking through historical border buffer zones, massive Klingon fleets launch a coordinated, deep-strike invasion into the Archanis Sector, solidifying the conflict as a total, generational quadrant war.
• SFI Leadership Transition: Following a major intelligence restructuring to combat wartime subversion, Chakotay is officially named Head of Starfleet Intelligence.
• The Carnegie Plague: A virulent, biologically engineered plague sweeps through the population of Carnegie, prompting an immediate Starfleet tactical blockade and quarantine of the entire system while scientific containment teams investigate.
• Romulan Resource Crisis: Beset by systemic economic collapse and inner infrastructure failures, the Romulan Free State slashes all supply lines and resource shipments to the joint Carraya Colony by 50 percent.
• First Contact with the Xaraxian Congress: The U.S.S. Stargazer successfully establishes formal first contact with the Xaraxian Congress, a civilization deeply intrigued by the Federation's constitutional dedication to interstellar peace.
• Memory Alpha Breakthrough: Leveraging micro-power cell breakthroughs analyzed at Memory Alpha, the Starfleet Corps of Engineers begins the large-scale distribution of high-efficiency personal forcefield emitters and advanced shield generators to planetary ground forces.
• The Coppelius Restoration: Working in absolute secrecy on the synth world of Coppelius, Data - with the assistance of Soji - successfully restores the positronic consciousness and physical form of his daughter, Lal.

2407

• Klingon Civil In-Fighting: Internal political fractures erupt into open violence within the Empire as military forces loyal to the House of Martok engage in high-casualty skirmishes against warships loyal to the ascendant House of Duras.
• The Carnegie-Phylos Pandemic: The virulent Carnegie virus mutates and rapidly spreads to the botanical worlds of Phylos; Admiral Beverly Crusher coordinates the massive, multi-sector galactic medical response to engineer a cure.
• The Rejected Peace Talks: Deeply concerned by the multi-front destruction, the Federation Council issues a formal request for immediate diplomatic peace talks to the Klingon High Council; the overture is flatly rejected by Chancellor J'mpok.
• Imperial Ambitions: Exploiting the resource crisis and structural panic, Sela officially proposes dismantling the remnants of the Senate and reestablishing the traditional Romulan Monarchy to cement absolute autocratic rule.
• Lethean Petition: The Lethean government formally submits a petition to Chancellor J'mpok, seeking official entry and membership into the Klingon Empire.

2408

• The Coronation of Empress Sela: Solidifying her absolute hold over the core worlds, the Imperial Romulan Senate officially crowns Sela as Empress of the Romulan Free State, triggering a violent insurgency across the independent colonies.
• The Siege of Cestus III: Combined Klingon and Gorn armadas launch an all-out planetary invasion, occupying Cestus III. Starfleet responds by massing a tactical fleet along the sector border, resulting in a devastating starship battle in orbit.
• The Destruction of Starbase 236: Dispatched to investigate a complete loss of communication with Starbase 236, the flagship U.S.S. Enterprise-G uncovers that the base has been utterly destroyed by Undine warships.
• Personnel Shortages & Academy Reforms: Facing an unprecedented casualty rate from the ongoing war, Starfleet Command systematically lowers its strict enrollment requirements for Starfleet Academy while accelerating R&D into emergency holographic personnel.
• The Guardian Inversion: Mar Loc, a rogue Sindareen scientist, breaches parameters surrounding the Guardian of Forever, traveling back to the year 2368 to assassinate Counselor Deanna Troi. Captain William T. Riker uses the Guardian to pursue the assassin, saving Deanna and restoring the prime timeline.

2409

• The Destruction of Virinat: The quiet agricultural colony on Virinat is completely annihilated during a brutal, coordinated strike by the enigmatic Elachi and the Romulan Tal Shiar, forcing the survivors into the wider galactic conflict.
• The Borg Resurgence: Believed to have been destroyed, the Borg Collective initiates a sudden, hyper-aggressive multi-front incursion into the Alpha and Beta Quadrants, launching high-casualty planetary assaults.
• The Return of the Fek'Ihri: Long dismissed as mere myths of the Klingon underworld, the terrifying Fek'Ihri hordes mysteriously emerge in force, launching a massive assault directly against the homeworld of Qo'noS.
  • Following a series of exposed political treasons, internal assassinations, and battlefield failures against the Fek'Ihri, the treacherous House of Torg is permanently dissolved and stripped of its assets by the High Council.
• The Romulan Civil War: The localized Romulan Insurgency officially concludes as deep political fractures blow wide open, initiating a full-scale, multi-faction Romulan Civil War.
  • A massive coalition of refugees, rebels, and Unificationists led by D'Tan establishes the sovereign Romulan Republic, choosing the pristine world of New Romulus as their new homeworld.
  • D'Tan, leader of the nascent Romulan Republic, successfully maneuvers the Federation and Klingon Empire into recognizing his Romulan-Reman coalition as an independent state, securing a joint pledge to defend the breakaway nation.
• The Arrival of House Mo'Kai: Ripped across time via localized temporal distortions, the ancient Klingon House of Mo'Kai — led by the ruthless Matriarch J'Ula — arrives in 2409 from the year 2257.
• The Drozana Devidian Incursions: A series of terrifying spatial anomalies around Drozana Station prompts an intense investigation, revealing that time-shifting Devidians have been actively feeding on the neural energy of temporally displaced crews from the 23rd century. The systemic incursions are ended by the deliberate, tactical destruction of Driffen's Comet.
• The Battle for Nimbus III: Emerging as a lawless nexus for prohibited arms trading, Nimbus III becomes the target of joint Starfleet and Klingon task forces tracking black-market thalaron triggers. Allied crews defeat the notorious galactic assassin Hassan the Undying, completely breaking the Orion Syndicate's chokehold over the planet.
• The Invasion of Vulcan: Attempting to force a catastrophic blow against the Federation, Empress Sela personally commands a massive Romulan Free State armada in a surprise invasion attempt of the Vulcan homeworld, which is narrowly repelled by a rapid Starfleet defensive mobilization.
  • Backed by joint Federation and Klingon task forces, the Reman Resistance launches a massive orbital assault on the primary imperial stronghold on Brea III. In the immediate aftermath of the base's collapse, Sela is unexpectedly betrayed and kidnapped by the Iconians, vanishing into a localized gateway.
• The Rogue Ambassador: Convinced the Empire will stagnate without constant conflict, radical Ambassador B'vat works to drive the war into an endless sea of blood.
  • Ambassador B'vat violently disrupts peace talks on Regulus IV, attempting to kidnap Miral Paris before being repelled by Starfleet.
  • Following intelligence leaked by an Orion named Marta, a Starfleet strike force infiltrates the Briar Patch, destroying B'vat's hidden illegal weapon production facilities.
  • B'vat's forces hijack critical medical supply lines across the sector, attempting to restart the forbidden Klingon genetic augmentation process. Starfleet operators intercept the shipments, bringing chief scientist Amar Singh to justice.
  • Urged by the disgraced Klingon warrior K'Valk, Starfleet uncovers B'vat's ultimate weapon: an active Doomsday Machine targeted at an inhabited world to force an irreversible apocalyptic war. K'Valk sacrifices his life to damage the machine from within, allowing Starfleet personnel to destroy the ancient weapon.
  • Growing desperate, B'vat's remnant faction attacks the U.S.S. Kirk, successfully kidnapping Miral Paris and fleeing through the Guardian of Forever to the year 2270. Starfleet rescues Miral and terminates B'vat, with Miral's blood being used to restore the lost ridged foreheads of the past era's Klingons before the timeline is secured.
• The True Way Incursion: The splinter Cardassian faction known as the "True Way" forms a powerful military alliance with the Mirror Universe forces of Admiral Leeta, pushing Cardassian-Bajoran space to the brink of collapse.
• The New Link Schism: Deep within the Great Link, the Founders discover that the rogue Changeling Laas has intentionally hidden the true, chaotic state of the Alpha Quadrant from them, triggering a major philosophical divide among the shapeshifters.
• The Occupation of DS9: Temporally displaced Dominion forces from the 24th century suddenly emerge from the Bajoran Wormhole, executing a swift, ruthless tactical occupation of Deep Space Nine.
  • In a highly controversial diplomatic maneuver to secure a ceasefire and counter the rogue, displaced Dominion elements, Starfleet Command officially releases the Female Changeling from her long-standing federal custody in exchange for her ordering the Jem'Hadar to stand down.
• The Gateway Feedback Network: Late in the year, the Romulan Republic discovers and activates an Iconian Gateway beneath New Romulus. The action triggers a sub-spatial feedback loop, uncovering the Solanae Dyson Sphere and thrusting a joint command task force under Captain Tuvok into direct conflict with the Voth.
  • Deactivating the sphere's Transwarp Core opens a secondary gateway to the Jenolan Dyson Sphere. Tensions flare to the brink of open war as the Republic and the Klingon Empire attempt to claim the sphere, which the Federation had already archived years prior. Captain Tuvok aggressively intervenes, demanding an immediate joint summit on the Jenolan Sphere to address the Spheres and the resurfacing Undine threat.

2410

• The Fluidic Space Deception: While actively combating persistent Borg incursions, the Federation, Klingon Empire, and Romulan Republic uncover a horrific breakthrough: the Borg successfully assimilated an Undine.
  • Pushing into Fluidic Space, allied forces discover that the ongoing war between the Milky Way superpowers and the Undine has been entirely engineered by the Iconians.
• The Gateway Cascade: While assisting the Romulan Republic with infrastructure development and countering Tholian activity on New Romulus, joint teams uncover a subterranean Iconian gateway.
  • Attempts to study the technology inadvertently trigger a cascading reactivation across the entire galaxy-wide Iconian Gateway Network.
  • Discovery of a massive, ship-sized gateway in the Jouret System grants the three major powers direct access to the Solanae Dyson Sphere on the edge of the Delta Quadrant.
  • The powers form the Dyson Joint Command to neutralize the sphere's transwarp capabilities, thrusting them into a brutal, high-casualty conflict with the deeply entrenched Voth. The operation inadvertently triggers a secondary gateway leading to the Jenolan Dyson Sphere, leading the Jenolan sphere to execute an automated jump to the Delta Quadrant.
• Diplomatic Turning Point: Captain Tuvok calls a high-stakes diplomatic summit to bridge territorial divides and counter the mounting Undine threat. Captain Seven of Nine of the flagship U.S.S. Enterprise-G delivers an historic address, openly admitting the Federation committed a catastrophic error by ignoring the Klingon Empire's original warnings regarding deep-cover Undine subversion.
  • A massive Undine armada mounts an invasion of the Alpha Quadrant, heavily damaging Earth Spacedock.
  • Surviving Starfleet forces mobilize alongside Klingon and Romulan fleets directly over the First City of Qo'noS to defend against the Undine. Captain Va'Kel Shon decisively destroys the Undine super-weapon by ramming it with the Columbia's Aquarius light escort, saving the Klingon homeworld from total annihilation.
• The High Council Massacre & Armistice: Convinced of their shared blindness and united by a common enemy, the leadership of both the Federation and Klingon Empire gather in the First City to celebrate the victory and draft a permanent ceasefire.
  • Before the treaty can be signed, the Iconian M'Tara materializes in the High Council chambers, brutally murdering the entire Klingon High Council.
  • The tragedy officially ends the five-year Federation-Klingon War, permanently establishing the unified Khitomer Alliance alongside the Romulan Republic.
• The Delta Campaign: Utilizing the Jenolan Sphere as a staging ground, the Khitomer Alliance launches an expansive exploration of the Delta Quadrant, quickly identifying the heavily militarized Vaadwaur Supremacy as a dominant regional threat.
  • The Alliance learns that high-ranking Vaadwaur officers are being physically controlled by Bluegill neural parasites, serving as mindless thralls for the Iconians.
  • Former Empress Sela of the Romulan Free State is discovered alive, having vanished from Brea III the previous year. Sela subsequently escapes custody and forces the Alliance to witness the true magnitude of the threat.
• The Iconian War: The catastrophic Iconian War officially begins when the Andromeda Dyson Sphere teleports directly into the Iconia System. The Iconians deploy their Herald shock troops in overwhelming numbers.
  • Iconian forces attack Earth, New Romulus, and Qo'noS.
  • In a desperate bid to prevent total extinction, the Alliance partners with Krenim Imperium scientists to construct a weaponized timeship, altering the timeline disastrously and erasing the peaceful Tuterian civilization from existence.
  • Although the Dominion fleet joins the Alliance to defend Earth, the Herald forces completely overwhelm the Alliance's defenses. Using the timeship, the Alliance rescue the Iconians' complete cultural database: the World Heart. Returning to the present, the crew presents the undamaged World Heart to the Iconian leader, L'Miren. Deeply moved by the preservation of her culture, L'Miren orders an immediate, permanent ceasefire to re-colonize Iconia, officially ending the war on the condition that the Milky Way leave them in peace.
    • T'Ket, consumed by bloodlust, rejects the peace and vanishes.
• The Badlands Invasion: Exploiting the post-war devastation of the Khitomer Alliance, Mirror Universe Admiral Leeta commands a massive Terran Empire vanguard — having successfully conquered the Iconians in her own dimension — to launch a large-scale invasion of the prime universe, securing a militarized foothold in the Badlands.
• Noye's Vengeance: Driven mad by the accidental erasure of the Tuterian civilization during the Iconian War, Krenim engineer Noye forms the Temporal Liberation Front (TLF), gathering a hidden army of subspace-dwelling Tuterians, Terrans, and Na'kuhl to smash the Temporal Accords.
  • Tholian operatives successfully steal the Tox Uthat from Kal Dano and maliciously detonate it within the neighboring Na'kuhl system, dimming their star. Facing imminent planetary extinction, the Na'kuhl descend into extreme, violent xenophobia against all outside powers.
  • A massive historical anomaly is recovered in the 20 Draconis System as the 23rd-century station Deep Space K-13 is found floating in deep space, having been displaced from the Deneva System centuries prior. Its surviving Starfleet and Klingon personnel are successfully revived from cryogenic stasis.
  • The TLF launches a coordinates strike on an Alliance peace summit on New Romulus, narrowly failing to assassinate President Aennik Okeg and Chancellor J'mpok. Alliance fleets pursue the rogue armada across time, completely breaking the TLF at the historic Battle of Procyon V.
• The Liberation of Martok: Long thought dead following his 2393 duel with J'mpok, General Martok is discovered alive, secretly held in stasis captivity inside the Briar Patch. Successfully liberated by allied forces, he returns to lead his House and provide vital tactical guidance to the Alliance front lines against the Tzenkethi.
• The Tzenkethi Crusades: Breaking decades of absolute isolation, the autocratic Tzenkethi Coalition begins deploying highly volatile protomatter weapons in remote sectors of the Alpha Quadrant, prompting a rapid tactical response from the Alliance to determine their aggressive motives.
  • The Tzenkethi increase the brutality of their crusade, deploying devastating protomatter torpedoes against the Dranuur Colony and the planet Bajor. The weapons inadvertently trigger the global awakening of the Hur'q, resulting in an apocalyptic assault over Bajor that is narrowly repelled by combined Alliance and Dominion forces under Odo.
  • Odo convenes an emergency summit at Deep Space Nine, revealing that fighting the endless Hur'q swarm in the Gamma Quadrant has pushed the Dominion to its absolute breaking point, leaving them with only a single operational fleet. Elim Garak reveals that Hur'q Signaling Devices were intentionally planted and Odo confesses to placing the lure on Bajor to force the Alpha Quadrant to acknowledge the threat, insisting Bajor was never in true danger and that the Great Link is actively withholding vital operational data from him. The summit is cut short when an aggressive Hur'q swarm bypasses sector defenses to launch a direct assault on DS9. The attack is repelled and the Federation agrees to assist in the Gamma Quadrant.
  • A combined Alliance-Dominion expedition to the outer reaches of Dominion territory discovers the Karemma system under a total blockade by a rogue Dominion fleet commanded by the Female Changeling.
  • The final stand against the absolute height of the Hur'q swarm takes place over the world of Empersa, with the Klingon Empire finally joining the defense under the leadership of General Martok. Dukan'Rex sacrifices his life to successfully deploy a widespread biological cure, permanently pacifying the Hur'q swarm's ravenous madness.
  • In the immediate aftermath of the victory, the Dominion officially petitions to join the Khitomer Alliance, the Klingon Empire is opposed while the Federation is eager to explore a potential collaboration.