

The United Nations Space Command (UNSC) is the military, exploratory, and scientific agency of the Unified Earth Government (UEG) and has acted as the emergency governing body of the human race at large for a time.[9] The UNSC was formed in the 22nd century, a time when remnants of old cultural ideologies clashed for supremacy in the Sol System. The UNSC served mainly as overseer of United Nations military operations in space. After initiating massive militarization propaganda throughout its off-world colonies, through the UNSC, the UN defeated Frieden and Koslovic insurgent forces in a conflict known as the Interplanetary War, which consisted of several side-battles that took place on Mars, the Jovian Moons and the South American rainforests. Although the Interplanetary War brought a great deal of suffering to both the colonial population and the residents of Earth, it also united most of humanity's military forces by the end of the 22nd century.
During the Human-Covenant War, notably during the later years, the UNSC's purpose was to protect humanity and ensure the survival of the human species.
Though the official UNSC mission statement has been amended since it was established in 2163, the UNSC's statement of function can be summarized in two points: 1. Uphold and advance the policies of the Unified Earth Government. 2. Ensure the safety and security of Unified Earth Government territories, possessions, and areas vital to its interests. During the Human-Covenant War, notably during the later years, the UNSC's purpose was to protect humanity and ensure the survival of the human species.