The Terrans by Jean Johnson

Jean Johnson's first novel in an explosive new science fiction trilogy set in the world of the national bestselling Theirs Not to Reason Why series--set two-hundred years earlier, at the dawn of the First Salik War...

Born into a political family and gifted with psychic abilities, Jacaranda MacKenzie has served as a border-watcher and even spent time as a representative on the United Planets Council. Now she just wants to spend her days in peace and quiet as a translator--but the universe has other plans...

Humans have long known that they would encounter more alien species, and while those with precognitive abilities agree a terrible war is coming, they do not agree on who will save humanity--a psychic soldier or a politician.

But Jackie is both.

After she is pressured into rejoining the Space Force to forestall the impending calamity, Jackie makes an unsettling discovery. Their new enemy, the Salik, seem to be rather familiar with fighting Humans--as if their war against humanity had already begun...

This book is part of the "First Salik War" series.
Here are some other books from this series: