The Genesis Fleet - Ascendant. Book 2

A young fleet officer and a Marine stand together to defend their colony in the continuation of the powerful and action-packed Genesis Fleet saga from New York Times bestselling author Jack Campbell.
In the three years since former fleet officer Rob Geary and former Marine Mele Darcy led improvised forces to repel attacks on the world of Glenlyon, Old Earth and the Old Colonies have continued to shrink their military forces.