Although this movie is over fifty-years old as of this review it nevertheless holds up over time. In fact, I've never seen flying saucers like this is any movie. To give them a "personality", each was animated by Ray Harryhausen, with the top and bottom halves rotating in different directions and the spaceships tilting around. When they end up crashing into Washington D.C.'s monuments, these are done with stop-motion-animation as well. The stop motion is most effective, however, when combined with real stock footage of airplanes and tanks exploding.
The premise is that because Earth is starting to launch satellites, this is taken as a threat by the aliens, who want to conquer the planet. There bodies are atrophied, so they have to walk around in these metallic looking outfits which sort of look like Juggernaut from the X-MEN comics. They are also able to shoot out these disintegrating rays from their hands, which take care of the Army in short order.