The Alliance–Imperial War was the longest, bloodiest conflict in human history, lasting nearly 160 years, from 640 UC (331 IC / 3440 CE) to 799 UC (1 NIC / 490 IC / 3599 CE). The war ended with the Free Planets Alliance surrendering to the Galactic Empire and signing an unequal peace treaty. The Galactic Empire in turn shortly afterwards was replaced and succeeded by Reinhard von Lohengramm's New Galactic Empire.


The war between the Free Planets Alliance and the Galactic Empire began in 640 UC (331 IC / 3440 CE), when the Empire first learned of the existence of the Alliance. Emperor of the Galactic Empire, Kaiser Friedrich III, dispatched an invasion fleet through the Iserlohn Corridor, under the command of Grand Duke Herbert. The Free Planets Alliance countered with a fleet of its own, led by Lin Pao. Contrary to the Kaiser's expectation, Lin Pao's fleet won an overwhelming victory. The Alliance quickly established a defensive line within the Iserlohn Corridor, and the war with the Empire soon escalated, though neither side was initially able to gain a distinct advantage over the other. For much of the war, the Empire was on the offensive strategically, while the Alliance was fighting defensively to repel Imperial invasions.

At some point, a second navigable route between the Galactic Empire and the Free Planets Alliance was discovered: the Fezzan Corridor. Founded in 682 UC (373 IC / 3482 CE), Fezzan quickly established itself as an autonomous state, outside the jurisdiction of both the Empire and the Alliance — though technically it was still a dominion of the Empire. Fezzan became an independent zone, allowing for trade, diplomacy, and espionage to exist between the two nations.


640 UC (331 IC / 3440 CE)Edit

  • Battle of Dagon - First battle of the war. The Imperial Expeditionary Force is almost completely annihilated. Major Alliance victory.

696 UC (387 IC / 3496 CE)Edit

717 UC (408 IC / 3517 CE)Edit

  • Imperial Vice Admiral Telemann's troops mutiny.

728 UC (419 IC / 3528 CE)Edit

738 UC (429 IC / 3538 CE)Edit

742 UC (433 IC / 3542 CE)Edit

  • Battle of Dragonia - Bruce Ashbey leads Alliance forces to another victory. Alliance victory.

745 UC (436 IC / 3545 CE)Edit

751 UC (442 IC / 3551 CE)Edit

  • Battle of Palantia - Alliance's 11th Fleet takes severe damage. Imperial victory though diminished slightly by pursuit of withdrawing Imperial forces by Alliance reinforcements, resulting in more Imperial casualties.

766 UC (457 IC / 3566 CE)Edit

788 UC (479 IC / 3588 CE)Edit

  • Battle of El Facil - El Facil temporarily falls under Imperial control. Imperial victory.

792 UC (483 IC / 3592 CE)Edit

  • Battle of Arlesheim - The Keyserling Fleet opens fire prematurely, spoiling the Imperial ambush, and then suffers over 60% casualties from the Alliance counterattack. Alliance victory.
  • Fifth Battle of Iserlohn - Alliance Fleet Admiral Sidney Sithole attempts to take Iserlohn Fortress with his parallel pursuit strategy but fails when the fortress fires through its own fleet to hit the Alliance forces. Imperial victory.

794 UC (485 IC / 3594 CE)Edit

  • Battle of Van-Fleet - Inconclusive space battle. Ground battle results in effective destruction of Alliance base on Van Fleet 4=2. Minor Imperial victory
  • Sixth Battle of Iserlohn - Alliance missile cruisers bombard Iserlohn Fortress and inflict minor damage to the inner layer, but the Alliance offensive is ultimately repulsed. Imperial victory.

795 UC (486 IC / 3595 CE)Edit

796 UC (487 IC / 3596 CE)Edit

798 UC (489 IC / 3598 CE)Edit

799 UC (1 NIC / 490 IC / 3599 CE)Edit