Synchronicity War Redemption Vol. 2. The Synchronicity War, #8

This action-packed novel brings the Redemption War to a tension-filled conclusion. In spite of having retro-temporal communication, the war against the 610 insectoid motherships infesting the spiral arm is proving to be difficult. And lurking in the background across the void in the Sagittarius spiral arm, are more insectoid ships of unknown size and number. Victor Shiloh and his loyal A. I. allies must play a 4-dimensional chess game across both space and time against a life-form that is not only shockingly bizarre but also highly intelligent.
If space battles and grand strategy are your thing, you'll find them in this book.