Iraq these days is a land of queues. People line up to pass through checkpoints, to enter a school or hospital, and even to buy food. Some of the longest queues are formed by men, aged between 18 and 40, who want to join the Iraq National Defense Force (INDF), the country’s renascent army. Here and there one can even spot young women in the queues. Often tempted by wages of $40 a month, thousands have enrolled in the past eight months. The recent series of massacres of which over 800 recruits to the new Iraqi Army and police have...