Alien Invaders

I had another strange dream (nightmare) that a species of alien invaders initiate their attacks by first blurring and subsequently dissolving boundaries. They work in tandem with another alien species, who are draconian. The boundary-dissolving invaders attack the unjust authoritarianism in an attempt to convert their targets into willing allies. Then they use that momentum to question everything: all standards, all authority, all truths. It was like the rwo species played an alien version of good-cop, bad-cop.