2163

2163 was a year in the 2160s in the 22nd century.

November
November
 * Nadja Mielke, the leader of the Frieden movement, is assassinated on her way to a command center in the Europan city of Pelagon.

December
December
 * The United Nations Space Command is established by the United Nations to eliminate the various rebel organizations in the Sol system.
 * The Argyre Planitia Campaign takes place: In a conflict that stemmed from the Rain Forest Wars, the three primary Earth factions; the UN, Frieden and Koslovics clash again, this time on Mars. A series of lightning strikes against Koslovic forces near the Argyre Planitia marks the first extraterrestrial deployment of UNSC Marines.

Unknown
Around 19 months after February 2162 At the close of the Rainforest Wars
 * The Rainforest Wars ends.
 * The Battle of Delambre occurs.