Earth is the third planet from the sun and the planet most associated with the headquarters of the United Nations Space Force.
- Main article: Timeline
In the middle of the 21st century the orbital transport, which facilitated space exploration in the form of emigration to the established colonies at Lagrange Point, was completed. The subsequent discovery of Metatron revolutionized space travel, and the territory of the human race ballooned to include the Martian block. Earth was totally devoted colonizing of Mars, and each country took over the governance over its own county. The UNSF, comprised primarily of nations serving as permanent members on the U.N. Security Council, was dispatched.