Argyre Planitia Campaign

Military Forces
Military forces are unknown at this time, with the exception that the United Nations deployed a large number of star ships and Marines.

Timeline
December 2163: In a conflict that stemmed from The Rain Forest Wars, the three primary Earth factions clash again, this time on Mars. A series of lightning strikes against Koslovic forces near the Argyre Planitia marks the first extra-terrestrial deployment of Marines. The campaign is an unqualified success. As a result, future military doctrines favour large contingents of Marines for ground assaults and ship-boarding actions.

Historical Importance
The Argyre Planitia Campaign marked the beginnings of the UN Space Command (UNSC), and the dedicated usage of large forces of Marines in ground attacks.