Dominion War

Before the War

• Initial conflict occurred July 30, 2373 upon entry of Cardassian Union into the Dominion (DS9: "By Inferno's Light")
  • Prior to official beginning of hostilities, explicit illicit actions against Alpha Quadrant forces by the Dominion had been occurring since first contact, 2370
    • December 31, 2370: Official first contact, destruction of USS Odyssey (DS9: "The Jem'Hadar")
    • October 2371: Decimation of Tal Shiar and Obsidian Order (DS9: "The Die is Cast")
    • Mid-December 2371: Attempt on instigating new Federation/Tzenkethi War 2371 (DS9: "The Adversary")
    • Early 2372: Instigation of Federation-Klingon War 2372
    • May 2372: Instigation of attempted Starfleet coup (DS9: "Homefront", "Paradise Lost")

Core forces

• Alpha Quadrant alliance
  • United Federation of Planets
  • Klingon Empire
  • Romulan Star Empire
    • Nonaligned prior to September 2374 (DS9: "Call to Arms", "In the Pale Moonlight")
  • Third Republic of Bajor (DS9: "Call to Arms")
    • Unofficial ally from beginning of conflict
    • Officially nonaligned prior to 2375
• Dominion forces
  • The Dominion
    • Cardassian Union included as member state
  • Breen Confederacy
• Neutral
  • Miradorn (DS9: "Call to Arms")
  • Tholian Assembly (DS9: "Call to Arms"; SCE Short Story: "Interphase, Book 1")

Major Events

April 7, 2375

• Battle of Ricktor Prime (TNG Short Story: "Four Lights"; DS9: "Field of Fire")
• Forces
  • Alpha Quadrant alliance
    • USS Christopher
    • USS Enterprise (NCC-1701-E)
    • USS Grissom (NCC-42857)
    • USS T'Mala
    • USS Vaklar
    • USS Winchester
    • IKS Kortir
    • IKS Worvig
    • IKS Ya'Vang
    • Unnamed Klingon Defense Force vessel
• Dominion
  • CDS Elokar
  • Unnamed Galor-class vessel
  • Four unnamed Jem'Hadar vessels
• Alpha Quadrant task force defended Ricktor Prime against Dominion fleet (TNG Short Story: "Four Lights")
• Initial engagement resulted in loss of USS Winchester, unnamed Galor-class vessel (TNG Short Story: "Four Lights")
• USS Grissom, USS Christopher, CDS Elokar disabled shortly after (TNG Short Story: "Four Lights")
• Unnamed Jem'Hadar vessel destroyed via redirection of ejected warp core of CDS Elokar (TNG Short Story: "Four Lights")
• Two remaining Jem'Hadar vessels engaged in suicide strike, leading to destruction of USS Vaklar, IKS Kortir, IKS Worvig (TNG Short Story: "Four Lights")
• Remaining Jem'Hadar vessel escaped (TNG Short Story: "Four Lights")
• Results
  • Alpha Quadrant alliance losses
    • Destroyed: USS Grissom (NCC-42857) (six survivors), USS Vaklar, USS Winchester, IKS Kortir, IKS Worvig, unnamed Klingon Defense Force vessel (TNG Short Story: "Four Lights"; DS9: "Field of Fire")
    • Damaged beyond repair: USS Christopher (no survivors, vessel towed to Starbase 522) (TNG Short Story: "Four Lights")
  • Dominion losses
    • Destroyed: Three unnamed Jem'Hadar vessels, unnamed Galor-class vessel (TNG Short Story: "Four Lights")
    • Captured: CDS Elokar (vessel towed to Starbase 522 (TNG Short Story: "Four Lights")
  • No damage suffered by Ricktor Prime colony (TNG Short Story: "Four Lights")

Unknown

• Battle of Rashanar (TNG Novel: A Time to Be Born)

December 31, 2375

• Official surrender of the Dominion (DS9: "What You Leave Behind")
  • Withdrawal of Dominion forces from the Alpha Quadrant proceeded shortly thereafter