How many more excuses are we going to make before we face the facts? How many more fifth-rate, sixth-form debates will we have to sit through? Why, whenever any act of Islamist terror is carried out on Western society do we race to ask all the wrong questions, all based on the central fallacy that this is somehow our own fault? We wring our hands and make excuses. And then we blame ourselves. “What did we do to make this happen?” we ask, time after time.

Unfortunately, there are always people on hand eager to feed our self-absorption and ignorance. “It is your foreign policy,” they say. Perhaps after Brussels people might question this response a little more searchingly. Aside from Bhutan, Belgium probably has the least interventionist foreign policy of any country in the world.