The Geban-Thazvaari War was a prolonged conflict between the Geban Empire and the Thazvaari Dominion that lasted several generations and spanned multiple continental theaters. Emperor Vaer'Terund Venar, great-grandfather of Emperor Venar'Tolarg, formally declared war after diplomatic negotiations collapsed.
In the early phases, the Empire sustained significant losses. Thazvaari forces maintained superiority on most ground fronts through extensive use of mechanized units, advanced ground vehicles, rail networks, and fortified positions. Imperial supply lines were overextended, and many regions across Kharan's Gulf remained inaccessible due to limited mobility and infrastructure. The Dominion possessed no aerial forces and relied entirely on naval, rail, and anti-air defenses.
Emperor Venar'Tolarg died during a major campaign in northern Thazvaar. His body was not recovered. The young Prince Venar'Tal succeeded him as Emperor.
Emperor Venar'Tal Kareth created the Eyes of Venar'Tal as an integrated air-naval force. The Sky Hammers were placed under its command for coordinated high-altitude operations.
The strategic situation changed when Berinu requested imperial assistance against Thazvaari criminal syndicates that had seized control of resources and governmental functions. The Empire liberated Berinu, and its population accepted voluntary assimilation in exchange for retained autonomy. The establishment of the Empire's largest naval base in the Berinu Islands provided secure return routes across the Gulf, enabled construction of new relay networks, supported sustained troop rotations, and secured air superiority, an area in which the Dominion had no capability. The liberation also opened new recruitment pools from the local population.
In the north, Thazvaari forces attempted incursions into Ngorrhal but were consistently repelled by the Frost Sentinels. This front remained a stalemate, with no significant territorial gains by the Dominion.
The Dominion briefly occupied parts of eastern Jeyrha and captured several researchers before being expelled. The occupation created the perception of Jeyrhan alignment with Thazvaar, prompting Jeyrha to negotiate peaceful assimilation. Xerik Haavu developed the Haavu Cannon Systems for the Empire, facilitating Jeyrha's integration and elevating the Haavu family to the most prominent non-imperial lineage on Geba.
Yuvaar was first mapped by imperial scouts seeking alternate routes during the war. The continent remained neutral and undeveloped, possessing no significant industry or naval assets.
Both sides contested Manalheim but neither achieved lasting control. Slow surface vessels and short-range airships, combined with vast oceanic distances and unreliable navigation made sustained operations impractical. Expeditions were possible on a limited research scale but not for military projection.
Exploration attempts into the Uncharted failed. Maritime expeditions never returned; overland attempts via Kela were halted by extreme terrain and weather.
The Dominion's eventual defeat arose from overextension: the vast scale of their continent forced simultaneous suppression of inland piracy, criminal syndicates, and corruption while contending with sustained imperial invasion. Their extensive fleets, rapid rail systems, and defensive terrain provided no decisive advantage when resources and attention were spread too thin. Emperor Venar'Tal Kareth relocated to northern Berinu to personally direct the final operations—the only Geban emperor recorded as participating in direct action operations.
The war concluded with the public execution of Thazvaari King Hies, ending the decades-long siege of Kharan's Gulf. Emperor Venar'Tal Kareth then took Queen Nethelys Zahmira VIII as his wife—absorbing the Thazvaari royal line and ending any possibility of succession.
Mainland Thazvaar was occupied at high cost. Veris'Kal Therak was appointed as the region's first Imperator and implemented stabilization policies. Large-scale imperial civilian resettlement to coastal areas promoted demographic integration with surviving Thazvaari populations.
Coastal regions achieved relative stability through assimilation, while inland areas retained persistent piracy, criminal networks, and low-intensity conflict that the Empire could not fully eradicate.
Emperor Venar'Tal Kareth is recorded in imperial historiography as the most successful conqueror in Geban history.