Ironically, it was the Core's ultimate victory, the
victory over death itself, that brought about the downfall of its
paradise and started the war that would decimate a million worlds.
The immortality process, known as "patterning,"
involved the electronic duplication of brain matrices, allowing
the transfer of consciousness into durable machines. Effectively
it meant immortality, and the Core decreed the process mandatory
for all citizens in order to ensure their safety.
However,
there were many citizens unwilling to toss aside their bodies so
casually, many indeed who regarded patterning as an atrocity. They
fled to the outer edges of the galaxy, forming a resistance movement
that became known as the Arm. War began, though it was never officially
declared by either side.
The Arm developed high-powered combat suits for its
armies, while the Core transferred the minds of its soldiers directly
into similarly deadly machines. The Core duplicated its finest warriors
thousands of times over. The Arm countered with a massive cloning
program. The war raged on for more than 4,000 years, consuming the
resources of an entire galaxy and leaving it a scorched wasteland.
Both sides lay in ruins. Their civilizations had long
since vanished, their once vast military complexes were smashed.
Their armies were reduced to a few scattered remnants that continued
to battle on ravaged worlds. Their hatred fueled by millenia of
conflict, they would fight to the death. For each, the only acceptable
outcome was the complete and utter annihilation of the other.