Ready or not here come the Bugs
Sci-fi pop culture references abound in Rick Partlow's "Earth at War" series. Particularly from the main character, ex-Marine (I know, there ain't no such thing as an ex-Marine), Sci-fi fiction writer (is there anymore Sci-fi when the aliens are real?), savior of Earth in it's first solar system defense, and hyper translation capable spaceship 'James Bowie' Ground Forces commander Andy.
Exploring toward the origin of an even more advanced race than the aliens of the Alliance called The Elders the crew encounters more of the Elders work. Populations of Earth humans planted on terraformed worlds not just thousands of years in Earth's past but as recent as a few centuries.
They discover the source solar system of the Elders signal. Not wanting to include spoilers I will let you discover what they find for yourself. As always the action is believable, fun to read, and leaving the reader eager for more.