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The Battle of Andromeda was the Federation's first major action against the Klingons following the declaration of the Four Years War.

Around reference stardate 1/9410, starships of the Klingon Empire received word that the Federation had declared war. Small numbers of Klingon ships had begun massing at the Federation border in expectation of war, and many participated in attacks on Federation forces around the area visible from Earth in the Andromeda constellation, centered around the Andromeda system. (FASA RPG module: The Four Years War)


Battles of the Four Years War
Prelude Archanis Massacre (2250) • First Battle of Axanar (2251)
2252 Second Battle of AxanarBattle of AndromedaBattle of GenmarxEncounter at Lea
2253 Xamdab II Convoy RaidBattle of LyclydunInvasion of Janni IVLaxala IncidentBattle of Donovan's StarBattle of GR-1Assault of Nozseca VIIIAttack of Convoy Y-16ZNostveg I EngagementBattle of Joia VBattle of Sinbad IV
2254 Battle of Delgon-RBattle of Sector 23-HBattle of FalgorBattle of Lasur FunopEncounter at VidetuBattle of JevolBattle of KlafBattle of OgoloDebacle at GisoDefense of Rudgur IIIBattle of KesseBattle of Webirty
2255 Attack on Zal VhrosBattle of Sult IIElek EngagementBattle of ThranstorBattle of Sire YopotBattle of Sector 12-JBattle of Rex DacutBattle of TireheDefense of TopaxAssault of T'vamBattle of Sector 23-DBattle of Pen'sBattle of OcoBattle of Biwywb
2256 Battle of KaragBattle of GrankBattle of Kolm-an