Friend or Foe?

It's really difficult to tell what these aliens gonna do to us if that thing comes. Hmmm... If they can invade us that would only mean they are advance in terms of technology or they have this kind of power that a human being can't stand a chance to a one-on-one fight. Going back to the question, why keep us around if they can manage themselves and humans have no use to them.

Our survival chances would really depend on what the alien war aims were. If they wanted to exterminate us and don't care what condition they leave the Earth in, they could do that by changing the orbits of a few large asteroids (ie several miles across, Dinosaur-killer class) and dropping them on us. If they want the planet basically intact but want us out of the way, they could drop smaller asteroids on all our cities to eliminate the bulk of the population then use more conventional tactics to kill the rest of us - in that case there would probably be a few scattered holdouts living in caves and suchlike. If they just want our mineral resources and aren't bothered about occupation, they could threaten us with the above unless our governments organise the mining activities themselves and deliver the products to specified areas for collection - that leaves us alive but impoverished. On the other hand, they might be after something more intangible like converting us all to their religion - in which case resistance tactics might revolve around more subtle methods like practicing Earthly religions in secret, underground "samizdat" type publications and trying to convert their missionairies to our points of view.

I have no idea- movies abut them are just based on human's imagination- we don't even know what they look like , we don't know anything about them or if they even exist at all. I just hope that they are good if ever they invade us and want peace.

Aliens? Well excuse my skepticism, but I think we are just at the moment (and it is appropriate to say) light years from being attacked by alien life forms. This is despite many movies (remember such as "Independence Day") have proposed several times on the screen science-fiction films related to attacks by alien forces. Probably, these episodes do want to reflect that in the distant future, will be the same humanity, against herself who risks self-destruction. There is absolutely no need to attack by other species to destroy the humanity! This is my theory.