Of Fire and Night by Kevin J Anderson

The text presents a galaxy-spanning crisis where multiple civilizations face imminent destruction from the aggressive hydrogues and a sudden, devastating revolt by programmed Klikiss Soldier compies. On Earth, King Peter and Queen Estarra attempt to seize control from the manipulative Chairman Basil Wenceslas while the Earth Defense Forces barely survive the robot uprising and scramble to mount a planetary defense. The Ildiran Empire deploys a suicidal automated navy to combat the enemy and contends with the fallout from the secret breeding program run by Designate Udru'h and the return of the Mage-Imperator’s lost family. Meanwhile, the nomadic Roamer clans unite under Speaker Cesca Peroni and Jess Tamblyn to use the power of the water-based wentals as a biological weapon against the enemy strongholds. Ultimately, the survival of humanity depends on the last-minute arrival of colossal, organic verdani treeships from Theroc, which join the fight alongside the remnants of the human and Ildiran forces.