
The war between the Earth Empire and Cybran Nation continues.

The defenders respond by using previously-unknown battleships to destroy EarthComs armada, but its a pyrrhic victory: within a year, the virus will kill all of them. The no-longer-shy Seraphim overwhelm them, and EarthCom unleashes a virus engineered to kill the aliens. In 2669, 42 years into the conflict, EarthCom forces visit Seraphim II to find the alien technology, hoping to use it to win the war. The Earth Empire declares war on the Cybran Nation. He founds the Cybran Nation and secedes from what he sees as a tyrannical government. Gustaf Brackman, the man who created advanced artificial intelligence, heads to the planet Procyon with a group of AI-equipped machine-based slaves. The colonists are tasked with capturing and reverse-engineering the aliens technology, but they later lapse into radio silence. The first meeting with the aliens ends with 88 Seraphim and two marines dead the Seraphim subsequently avoid humans, and eventually EarthCom recalls its fleet, leaving a colony behind. No intelligent life is encountered until the year 2623, when a military expedition investigates the loss of contact with a surveying team on the world Seraphim II. Over the next few hundred years, humanity aggressively colonizes the stars, using bioengineered DNA patterns to grow colonists who are raised by artificial intelligence on new worlds.

Two years later, Earth unites under a single government, the Earth Empire its military arm is known as Earth Command (EarthCom). Interstellar expansion gets underway in 2108 when a colony is set up in the Alpha Centauri system. In 2055, a monkey is successfully tunneled to Mars, and six years later, a human arrives on Neptune the following year, a base is established on the planets Triton moon. A decade later, a breakthrough dubbed a quantum tunnel enables scientists to transport matter between locations. The history of Supreme Commander begins in the year 2015, when colonization of our local solar system begins.
