The War on Clowntopia
You could read all sorts of metaphors into this particular 5SF, and we're here to tell you this is literally, specifically about the actual country of Clowntopia. We hate Clowntopia, for the same reasons everyone does (i.e., full of clowns, land is shaped like a hideous clown face) and it is an unequivocally good thing they did this to themselves. Now, to invade and steal their precious balloon resources.