Dominion 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
      • Joined alliance September 2374 (DS9: "In the Pale Moonlight")
  • Dominion forces
    • The Dominion
      • Cardassian Union included as member state
    • Breen Confederacy
  • Neutral
    • Tholian Assembly
• December 31, 2375: Official surrender of the Dominion (DS9: "What You Leave Behind")
  • Withdrawal of Dominion forces from the Alpha Quadrant proceeded shortly thereafter