- last post: 01.01.0001 12:00 AM PDT
There are. There are other colonies, remember. It's just Earth is the last known stronghold. For all we know though, there could be another planet with a huge minefield of nuclear mines, 500 capital ships guarding it, 400 MAC stations, and a division of spartans.... Scary.
If Earth is the last know Stronghold, Why wouldn't they have all that at Earth instead of another planet?