Here's how it works. The black dildo represents America's influence and corruption on the rest of the world. The yellow dildo is Europe which is trying to defend the world in their own means, but in reality is just as bad as America.
The Penis represents Africa, as it is ultimately useless, and "just there."
All in all, this is basically Code Geass in a single picture, and oddly enough, more watchable than the actual show.