The Union

The Union is a confederacy of several alien races and the chief rival of the Tymon. Initially a loose alliance, the races of the Union have since merged into a federated republic out of necessity in order to survive further attacks by the Tymon, as well as the innumerable other threats lurking in the galaxy. The Straal, by virtue of possessing the most territory and being both technically and militarily inclined, serve as the face of the Union.

Pre-Contact Era
The Union was initally a much larger entity, with each race controlling at least fifteen worlds apiece; the Straal themselves held thirty worlds alone. The time before coming into contact with the Tymon was a golden age of peace and progress, both technologically and economically. The races enjoyed relatively blissful lives, ignorant of how hostile the galaxy truly was. Unfortunately, though the galaxy is a massive place, true peace is almost nonexistant, and it was almost inevitable that something would come along and put an end to their golden age.

Eldar Machinations
The Eldar, as many have come to understand, are a hubristic and self-serving race. In their minds, the only beings worth anything are other Eldar; the rest of the sentient species populating the galaxy are little more than pawns to be manipulated as they see fit. The Union was no exception and the Eldar of Craftworld Catu-Belah schemed to use it to serve their own ends.

For millennia, the Tymon had regarded the Eldar as their sworn enemies, and vowed that they would one day exterminate all Eldar. Over the long centuries, they had become very effective at culling Eldar, with Catu-Belah having been the most recent recipients of their ire. Upon discovering the Union, the Eldar found a way to exact their vengeance. They lured the Tymon into the Union's area of space, counting on their xenophobic mentality to cause them to wage war against the members of the Union.

When Tymon ships entered Union territory, the aliens sent representatives to greet them.