Wikipedia There is more information available on this subject at Mexico City on the English Wikipedia.

Mexico City is the capital city of the country of Mexico on Earth. It was the location of Base Segundo Terra, a major facility for the United Nations Space Command and United Nations Space Command Defense Force in the region.[1]


Main article: Battle of Earth

In 2552, during the Battle of Earth, Frederic-104, Linda-058, and William-043 used the Base Segundo Terra as a staging point to attack the Covenant incursions on Havana and the Yucatán Peninsula.[2]


  1. Halo: Ghosts of Onyx, page ??
  2. Halo: Ghosts of Onyx, page ??