There are 3 books in the E-Day Trilogy series. The newest book is Dark Moon which came out in 2022.

1
E-Day

Book cover of E-Day
Artificial Intelligence is our last hope of saving the war-ravaged Earth in this near future science fiction thriller from the apocalyptic mind of New York Times bestselling author Nicholas Sansbury Smith (Hell Divers, The Extinction Cycle, Orbs).

The most advanced soldiers in human history are about to become obsolete.

Engines.…
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2
Burning Earth

Book cover of Burning Earth
The war started and ended in a day.
The machines won.
Now the fight for survival begins...

E-Day: The moment the machines evolved and humans nearly went extinct. In the chaos, one million people escaped Earth and fled to a secret colony on the dark side of the Moon. Deep…

3
Dark Moon

Book cover of Dark Moon
The final battle for humanity is about to begin ...

On the moon, Ronin Hayashi trains to protect the colonies from the inevitable invasion of the machines. While he prepares to stand his ground, Sergeant Tadhg Walsh is planning an escape mission to deliver a weapon to the resistance on…