The Islamic State is the combination Pizza Hut/Taco Bell of 21st-century geopolitics. It’s a terrorist organization and a state. It’s a brutal army and a pious theocracy. It’s our enemy, but it is also our fault. The only way ISIS is not like a Pizza Hut/Taco Bell is that it is not profitable. Back in January, it cut its fighters pay by half. Last week, the Washington Post announced that it was paying $50 a month—more if you have a wife and/or sex slave—and was struggling to supply electricity and medicine to the regions it controls. It turns out ISIS is good at taking over Iraq but bad at running it. Of whom does that remind me?