How to dismantle an atomic bomb.. kind of

This post made me ponder over a possible solution to stop the self destructive march of mankind - what with the humankind having found little else over time besides killing in one way or another to keep itself busy with. Wars and genocides are pretty much all that we have to show for our history. It's funny really to think of how minuscule our existence is in this cosmos and yet in our miserly little world we live with missiles pointed at each other. Like it was a game to avoid grand boredom out of so much loneliness in our seemingly lifeless stellar neighborhood. For such a stupid world, what could possibly be a reason to stop the madness?

The answer, perhaps lies in UFOs. Not ordinary UFOs, but hostile ones. Beam images of unfriendly alien ships descending, kidnapping and killing earth-folk and you would stir the collective fears of all earthlings. In the face of a bloodthirsty alien, threatening all human existence, the human race would band together like a bunch of frightened sheep. And there will be forced amongst the peoples of the world, discussions for strategies to counter the common enemy. An existence saving inter-galactic war would seem very imminent, encouraging or forcing, as the case may be, the people to live together and look at the earth as a common resource in the everlasting preparation for the star war(s). In such a situation, people would perhaps realize it didn't matter where the individual countries' borders stretched or what religion was supreme. If not forgotten, such issues will at least be relegated to a secondary status to the need for preserving the human mark in the universe.

Ender's Game?