Once before, the sentient races in the known part of the galaxy --
humans, Orions, Ophiuchi and Gorm -- had united to defeat alien
invaders. The bugs were as incomprehensibly alien as they were
revoltingly evil, using all other living things, intelligent or not, as
food, and they had been defeated at a terrible cost. Decades have since
passed and the gallant warriors of the battle against the bugs have
grown old, while new generations have grown complacent...dangerously so.
Long ago, much of the population of an entire planet had built a huge
fleet of ships, each ship larger than a city, and fled their world
before its sun went nova. Those slower-than-light ships traversed many
light years, and have now arrived at the world they intend to make their
new home. They regard the fact that the planet is already colonized by
humans as a mere inconvenience, the more so since their mode of
communication is so different from anything humans use that they do not
consider humans and their allies to be truly intelligent. And the
arriving aliens know -- or, at least, they believe -- that when they die
they will be reincarnated, so they do not hesitate to attack humans and
their allies with suicidal fury.
This time, the intelligent races of the old alliance will not have to
worry about becoming an invader's meal -- but that will be small comfort
if the invaders decide that genocide is justified for their own
survival...
