Earth-Romulan War

• Initial conflict considered as officially beginning July 22, 2155, upon destruction of Calder II science station and attacks on Alpha Centauri III and Tarod IX
  • Prior aggression begun at first contact between United Earth and Romulan Star Empire
    • April 17, 2152: First contact, unnamed system, collision by Enterprise NX-01 with cloaked Romulan minefield (ENT: "Minefield")
    • Mid-November 2154: Failed attempt at provoking strife between various Sol-local powers through covert attacks by telepresence drone technology (ENT: "Babel One", "United", "The Aenar")
    • February-May 2155: United Earth covert operations intended to derail Romulan warp 7 project (ENT: The Good That Men Do)
    • February 23, 2155: Warp suicide run by Romulan vessel on Coridan to cut off Coalition access to dilithium (ENT: The Good That Men Do)
    • July 15, 2155: Destruction of ECS Horizon during initial telecapture experiments (ENT Novel: Kobayashi Maru)
  • Initial conflict involved full Coalition forces, but vulnerability of non-UE navies to Romulan telecapture led to withdrawal by late-2155 (ENT Novel: Beneath the Raptor's Wing)
• Core forces:
  • United Earth
  • Romulan Star Empire
• Allied forces:
  • United Earth
    • Andorian Empire
    • Confederacy of Vulcan
    • Haakona
    • United Planets of Tellar
• July 22, 2155: First non-covert action against Earth/Coalition forces
  • Attack on Alpha Centauri III, Calder II, Tarod IX; attempt at capturing Enterprise NX-01 in Gamma Hydra sector via telecapture technology through attack on SS Kobayashi Maru (ENT Novel: Kobayashi Maru, Beneath the Raptor's Wing)
    • Destruction of Calder II science station, Tarod IX outpost
    • Coalition losses: DDV T'Jal; DDV Toth
• October 16, 2155: Attack on Deneva (ENT Novel: Beneath the Raptor's Wing)
  • Destruction of Deneva Colony
  • Coalition losses: TSC Miracht; USS Yeager
• 2160: Official surrender of the Romulan Star Empire (ENT Novel: To Brave the Storm)
  • Establishment of Romulan Neutral Zone (ENT Novel: To Brave the Storm; TOS: "Balance of Terror")
  • General withdrawal of Romulan diplomatic and military influence in surrounding space until mid-2260s (VAN Novel: Summon the Thunder; TOS: "Balance of Terror")