Three lunatics have come from beyond the stars to exert their will on the indigenous population, and I think it’s fair to say that they’re still getting the hang of it.
They come from Krypton, this trio of voracious demons, a planet where everybody stands around under a giant ice bubble wearing spectacular gowns and arguing about the pronouncements of the Science Council. I imagine that the first thing the conquerors are looking for is the nearest depository of glowing crystals, to snap them all in half and then stand around looking smug.
Earth has come as something of a surprise to the vanquishers; the first thing that General Zod noticed on planetfall was the curious existence of bodies of water, just lying around on the ground being wet. So that’s going to be a problem, vanquishing-wise. If you plan to rule the Earth and you’re unfamiliar with the concept of water, there is a fairly steep onboarding process ahead of you.