Lets suppose these two enemy races were always at war, but once they landed on earth they immediately signed their magna carta dividing earth in two. (hivelink)

The two alien races then formed Atlantis together, that got wiped out, so then they tried again in scattered surviving settlements on earth.

(hivelink)
  1. Lets suppose you can even see a pattern of pyramid architectural styles on earth clearly showing where aliens Red and Aliens Blue held their permanent 55000 year treaty of control areas. tid:3447 (1) (hivelink)
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