No one actively participant in a war decides who the bad side is except those who write the history. It's not like Hitler woke up one day and said "yeah, I want Germany to be the villain today, let's kill some Jews in the process". There are circumstances, causalities an previous consequences that lead to decisions wrong or right taken depending on the perspective you are on.
Poor DJ-chan, relegated from boss to punching bag.
You might think us in the Shipgirl Group as some country bumpkins,Well damn... the Abyssal Group jokers... they're just little pissants?HAVE SUMMA DIS!
-RUNCH!
KA-BRAIN
OF THE FLEEEEET!VHUDWHUDWHUDWHUDWHUDDAKKADAKKADAKKADAKKADAKKADAKKAAHHHHH!GAH!MURDER TIME!IT'S A RAIIID!Hie...Hawaii, Oahu IslandTORA! TORA! TORA!but we've never once been outdone by any outsiders.
A quote from Battles Without Honor and Humanity: Police Tactics.