Tau Base on Garmenes lost

At the beginning of 03.025M42, the Tau colony world of Garmenes came under a sudden and overwhelming assault from Hive Fleet Poseidon, a massive Tyranid splinter fleet that surged through the void with terrifying speed. The Tau defenders, already stretched thin due to ongoing conflicts in the Rifts of Hecate, were caught completely off guard. Within days, their defensive lines began to collapse under the sheer weight of the swarm, as Poseidon’s bioforms relentlessly pushed them back from their strongholds and shattered their once-secure bastions.

As the Tau fought desperately to stem the tide of Tyranid monstrosities, a new threat emerged—the Emperor’s Children. The traitorous warriors of Slaanesh, ever drawn to excess and opportunity, descended upon the war-ravaged world, not to defend it, but to loot and sow further destruction. They raided Tau bases, stealing technology, weaponry, and valuable resources, while slaughtering both the defenders and any surviving civilians.

With the Tau forces already struggling to hold back the Tyranids, the sudden appearance of the Chaos warbands turned an already dire situation into a total catastrophe. Unable to counter two relentless enemies at once, the Tau lines crumbled, and their retreat quickly turned into a panicked evacuation.

By 1203.025M42, any Tau who could escape had already fled, abandoning Garmenes to its fate. The Emperor’s Children withdrew as well, having taken all they could from the shattered Tau infrastructure. With no meaningful resistance left, the Tyranids began the inevitable process of consuming the world, stripping it of all organic matter to fuel the hive fleet’s continued advance.

The fall of Garmenes marked the complete collapse of the Tau expedition into the Rifts of Hecate. What had once been an ambitious expansion effort had now turned into a desperate retreat. The remnants of the surviving Tau forces fled back towards Echo Reach, carrying with them a dire warning—the Hadron Expansion Sphere itself could now be in grave danger.