The year is 2552. Planet Earth still exists, but overpopulation has forced many of her former residents to colonize other worlds. Faster-than-light travel is now a reality, and Earth's unified government, through the United Nations Space Command, has put its full weight behind the colonization effort; millions of humans now live on habitable planets in other solar systems. A keystone of humanity's colonization efforts is the planet Reach, an interstellar naval yard that builds colony ships for civilians and warships for the UNSC's armed forces. Conveniently close to Earth, Reach is also a hub of scientific and military activity.
Thirty-two years ago, contact with the outer colony Harvest was lost. A battlegroup sent to investigate was almost completely destroyed; only one badly damaged ship returned to Reach. Its crew told of a seemingly unstoppable alien warship that had effortlessly annihilated their forces.
The year is 2552. Planet Earth still exists, but overpopulation has forced many of her former residents to colonize other worlds. Faster-than-light travel is now a reality, and Earth's unified government, through the United Nations Space Command, ...