They've been around for some time, but it was only late last month that they started to grab more of the world's attention. On May 27, the Islamist militant group Ahlu Sunnah Wa-Hamo attacked Monjane, a town in northern Mozambique's Cabo Delgado province, beheading 10 people. But the group has been active for months, attacking police stations, silencing opponents, robbing banks, looting weapons and burning villages. And given that Cabo Delgado just happens to hold vast reserves of natural gas, the emergence of Ahlu Sunnah Wa-Hamo doesn't just affect Mozambique but the global energy industry. One week after I wrote about the factors to consider when gauging the success of counterinsurgency and counterterrorism operations against a militant group, now is the perfect opportunity to assess how Ahlu Sunnah Wa-Hamo stacks up against the measurement criteria....