The Four Years War was the single "hot" war between the Klingon Empire and the United Federation of Planets in the 23rd century, between reference stardates 1/94 and 1/98.

These dates would correspond to the early 2250s on the standard timeline.

The war started when the Federation colony on Archanis IV was attacked which resulted in the death of 112 Federation citizens. It was discovered later that the Federation protectorate world of Axanar served as a base for a Klingon garrison. This was discovered when Captain Garth of the USS Xenophon discovered a disabled Klingon cruiser inside Federation space. Admiral Kkorhetza of the Klingon garrison declined the opportunity to surrender the garrison to Starfleet which started the war. (FASA RPG module: The Four Years War)

StarshipsEdit

The Four Years War caused a military buildup between the Klingon Empire and Federation, resulting in numerous advances in starship technology. The following classes saw action in this conflict:

• Federation:
  • Achernar-class • Baton Rouge-class • Constitution-class • Heston-class • Tikopai-class • Anton-class • Canopus-class • Apache-class • Larson-class • Marklin-class • Monoceros-class • Portsmith-class • Siva-class • Loknar-class • Fenlon-class • Bode-class • Hale-class • Hermes-class • Nelson-class • Sawyer-class • Chariot-class • Dollond-class • Kepler-class • Ptolemy-class • Cochrane-class • Aakenn-class • Liberty-class • Eagle-class • Cygnus-class
• Klingon
  • D'aka-class • T'h'lar-class • D'ama-class • K't'agga-class • Z'gal-class • Riskadh-class • Kl'sarza-class • Death Rite-class • Kalath-class • Z'Mortama-class • Talat Kh'exesta-class • K'nel-class • Plen Zha-class • Koreba-class • Zha Mortas-class

BattlesEdit

Battles of the Four Years War
Prelude	Archanis Massacre (2250) • First Battle of Axanar (2252)
2252	Second Battle of Axanar • Battle of Andromeda • Battle of Genmarx • Encounter at Lea
2253	Xamdab II Convoy Raid • Battle of Lyclydun • Invasion of Janni IV • Laxala Incident • Battle of GR-1 • Assault of Nozseca VIII • Attack of Convoy Y-16Z • Nostveg I Engagement • Battle of Joia V • Battle of Sinbad IV
2254	Battle of Delgon-R • Battle of Sector 23-H • Battle of Falgor • Battle of Lasur Funop • Encounter at Videtu • Battle of Jevol • Battle of Klaf • Battle of Ogolo • Debacle at Giso • Defense of Rudgur III • Battle of Kesse • Battle of Webirty
2255	Attack on Zal Vhros • Battle of Sult II • Elek Engagement • Battle of Thranstor • Battle of Sire Yopot • Battle of Sector 12-J • Battle of Rex Dacut • Battle of Tirehe • Defense of Topax • Assault of T'vam • Battle of Sector 23-D • Battle of Pen's • Battle of Oco • Battle of Biwywb
2256	Battle of Karag • Battle of Grank • Battle of Kolm-an

External LinksEdit

• Four Years War article at Star Trek Expanded Universe