What’s the attack coming from Far away?-Justice League Trailer Breakdown

Okay finally after much waiting the trailer for DC's Justice League just dropped by few hours ago. Ya the trailer was action pact. It shows Batman (Ben Affleck) recruiting Aquaman(Jason Momoa), Flash(Ezra Miller) and Cyborg(Ray Fisher) which of course was showcased in the teasers. Then we see a conversation between Batman and Wonder Woman(Gal Gadot)...