Basically these super advanced robots are associated with knights in shining armor instead of advanced Japanese robots.  The main line in the trailers was "For our world to survive, yours must die."  Basically this means that the Asian world must die in order for the European world to survive.  The European world is dying, they believe they are more advanced, the thriving Asian hemisphere is what they want to exploit.  First they helped the Asians with their tech and now they need to destroy the bond/friendship because their ulterior motive was to always come and pillage us.