In the 3rd mission of the Dark Avatar campaign "Bribery and backstabbing", the text says:"Conquer everyone who doesn't agree with our conquest in this sector" and before that "the Korath have [...] [have] pre-assemble[d]a base on planet Sidin as we prepare to defeat the Korx"

The problem is that the end conditions say: "Forge alliances with the major civilizations and create a lasting peace"

Which one should I trust? and if that ever happens again, with which should I go by?