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The Alpha Quadrant highlighted in blue.

The Hradrian Empire was an interstellar nation-state, an empire controlled by the Hradrians that lasted from the 20th century to the 22nd century. The Hradrians controlled a broad swath of worlds across the entirety of the Alpha Quadrant and commanded significant firepower. (TOS novel: Savage Trade)

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The Hradrians built their power on exploitation of other species and slavery. The L'rah'hane were employed by the Empire as pirates and {dis|slaver|profession}}s. Contemporary Earth defenses would not have withstood Hradrian firepower.

The Hradrian Empire fell in the year 2195. The L'rah'hane cannibalized the remains of the Hradrian navy for their pirate fleet.

Around stardate 6097.2 in the year 2270, Lieutenant Hikaru Sulu and Ensign Pavel Chekov of the Federation starship USS Enterprise discovered an old Hradrian station in the vicinity of Federation science outpost Zeta Gibraltar in the Vara Nebula sector. Commander Spock briefed Captain James T. Kirk about Hradrian history and the remains of their ruins.

The outpost, Enterprise and a group of Excalbian refugees were soon involved in a conflict with nearby L'rah'hane. The Excalbian George Washington used strategy to capture five L'rah'hane ships, forming the New Excalbia Navy. (TOS novel: Savage Trade)



major states in the Alpha and Beta Quadrants
Khitomer Accords Cardassian UnionFerengi AllianceKlingon EmpireUnited Federation of Planets
Typhon Pact Breen ConfederacyGorn HegemonyHoly Order of the KinshayaRomulan Star EmpireTholian AssemblyTzenkethi Coalition
Khitomer Alliance Cardassian UnionDeferiDelta AllianceDominionFerengi AllianceKlingon EmpireLukari ConcordiumRomulan RepublicUnited Federation of PlanetsVoth Separatists
non-aligned states CortDaa'Vit ConfederacyDanteri EmpireFirst FederationGottar HegemonyGrigariHydran KingdomImperial Klingon StatesInterstellar ConcordiumJibetian ConfederacyKarg EmpireKentari UnionKzinti PatriarchyLyran Star EmpireMentosh AssemblyMetron ConsortiumNew Thallonian ProtectorateNyberrite AllianceOrion ColoniesPatriarchyRegnancy of the Carnelian ThroneSattar CollectiveSheliak CorporateShirn AllianceTalarian RepublicTarn EmpireTezwaTirrion AssemblyUbarrak PrimacyVenette ConventionVomnin Confederacy
defunct states Hiram AssemblyHradrian EmpireHusnock Star KingdomImperial Romulan StatePartnership of CivilizationsStellar Kingdom of CorillThallonian EmpireThelasian Trading ConfederacyZalkat Union
states unique to the mirror universe Galactic CommonwealthKlingon-Cardassian AllianceTerran EmpireTerran Republic
states from other alternate timelines AllianceErdenreichGalactic UnionIconian-Dominion AllianceInterstellar AxisInterstellar CoalitionInterstellar UnionKlingon-Andorian CompactVulcan-Andorian EmpireVulcan ProtectorateVulcan Star Empire

Appearances and references