Translation of the publisher's summary
At the beginning of the year 2309, the Terran Union is in a dangerous situation: Its arch-enemy, the race of insectoid Tsrit, which threatens the existence of human civilization for about 140 years and could never be defeated, is seemingly gearing up for an annihilating strike against the Union. There is great uncertainty, however, because of their obviously open concentration of ships - a completely unusual tactic for this race.
But the Tsrit are not the only alien race to which humanity has established contact. There are colonies of the Lengroah in the human territories, a peaceful feline race that has lost its own empire in a war against the Tsrit and now supports humanity in the new conflict. The unfeeling reptilian Srakhs are the cause for many espionage incidents with their insatiable curiosity for information. And the ancient civilization of Arnesh, which - contrary to its own belief - has once saved mankind from their demise at the hands of Tsrit, but behaves strangely in the recent years. Making matters worse, there is also the message of a completely unknown race, who announced the destruction of many civilizations, among which they also count the human race...
But even within the Terran Union not all is sunshine and roses. Although it is officially a democracy, large parts of the decision-making power lies in the so-called Military Council. Many of the large interstellar corporations have a seat in this Council and with it power over the Union - and that power grows. Many companies don't care in the least about the social conditions in their colonies, and the theoretically guaranteed basic provisions trickle away on the way from Earth to the distant colonies. The rich colonies in the west of the Union fear for their existence or their prosperity and break openly with the Union. The interstellar space fleet as a fighting force of humanity has more tasks than just the protection of the Union against the Tsrit ...