Verhoeven said that this society always needs an enemy...
In some documentary of this movie, Verhoeven said that the society in this movie always needs an enemy... and that this movie is PC-cuck propaganda (not in those words, but he sugarcoated it).
I didn't notice that in this movie, did you? That they were having a bad time before the attack on their cities. I haven't seen this movie for a while though.