Red Vector (Red Vector #1)

Cora Martinez has seen her fair share of conflict - as a Sonoran Desert Park Ranger, she straddles the line between sheltering desperate immigrants and steering others away from an uncertain fate. She longs for a place where disputes such as these no longer exist. But a clash far bigger than any on Earth is about to rip the heavens apart and crash land upon her doorstep with the arrival of two opposing combatants in an alien civil war through a rift in space!

The earthbound space opera from the creators of Morning Star and Crush Depth begins! When the stars fell, war came to Earth.