An unintended but highly illuminating irony of the military intervention in Libya is that it has exposed the duplicity behind European pacifism. Ever since taking office in 2004, Spanish Prime Minister José Luis Rodríguez Zapatero has worked overtime to craft his own public persona as a “convinced pacifist.” His first official act as pacifist-in-chief was, famously, to withdraw Spanish troops from Iraq. That decision was not only wildly popular with Spanish voters, but it also cemented Zapatero’s pacifist credentials on the world stage. Zapatero has also been careful to appoint only pacifists as Spanish ministers of defense. Zapatero’s first defense...