Counterstrike is the third book in Marcus Snow's Dogs of Ore military science fiction series. One year after humanity drove the Thrang invasion fleet from the Solar System, the enemy returns with overwhelming force. Four Thrang fleets descend on the Belt, Mars, and Earth, determined to finish what the first invasion failed to accomplish. Earth is stronger now, but still outmatched. Its ships are fewer, its weapons shorter-ranged, and its survival depends on deception, improvised technology, alien defectors, and the strange partnership between human miners and their sentient AI dogs. As Mike Stone and the crew of the Susquehanna help coordinate Earth's defense, humanity turns ore modules, mining bots, debris fields, and orbital traffic lanes into weapons of war. But the Thrang are not the only alien power watching. The Mirallex see opportunity.

The Vokari see honor. Subject peoples of the Thrang see a chance at rebellion. And in the darkness beyond the system, Admiral Trelnor, Taleth-Mor, and Wiley face a choice that may alter the fate of more than one civilization. Counterstrike is a fast-paced military science fiction novel about asymmetric war, fragile alliances, and a species too stubborn to surrender.