What if..

What if there ever was a galactical war,between Earth and some other "green" planet?We have nukes,they would have super plasma beams that can shoot orbital.Sure NASA could quickly scavange some shields up,but what about our space stations?They would get vaporized in seconds.All in all,this scenario is very likely,since not a long time ago a group of scientists found that "green" planet,that had signs of water/air.We just have to wait and see.Or better yet,THEY could be doing the same,examining us...