The Overwhelming Alien Horde

It came out of the sky... no, hang on. Actually, the Postman delivered it. But, most of us were at least reasonably sure that, if it had not been for the rather reasonable postal charges, then it would indeed have come out of the sky.

Of course, in the past, alien invasions have not quite been this straightforward, often becoming quite fraught as the overwhelming alien horde easily overcame all the massed armies that the Earth could put up against them.

However, since the recent economic downturn has resulted in a large decrease in both the Space Exploration and the Armed Services budgets of most Earth nations, this latest alien invasion was contracted out to the postal services of the Earth's leading nations, rather than going through all that fuss with the lasers and explosions. Not only that, as the aliens are interested in taking over the Earth as a going concern, in order to use it as a sort of planetary wildlife and amusement park. A place where alien species from every galaxy can come to gawp at the wonderfully primitive and authentically-backward human race as it attempts to understand even the most basic concepts of science and technology. Consequently, the alien invaders were rather keen not to engage in the usual wanton destruction of the Earth’s capital cities.

Although, in order to assuage the initial hostility of the world's populace, they have promised to execute – in several inventive and very painful ways – the majority of the Earth's leaders and politicians – so, at least, we have that to look forward to as we welcome our new alien overlords.