The Hyperspace War (The Founding of the Federation Book 7)

Forces were at work pushing the Federation together. A common threat in the form of the Ghost Armada solidified support for amalgamation into a unified galactic government. President Washington had to deal with the transition into a new form of galactic government, integrating new species while combating a seemingly invincible and merciless foe. The various alien and Terran species have to pull together like never before in order to combat this threat capable of destroying entire planets...
All the while fighting a war on another plane that they barely knew existed...