In some ways "the global jihadist movement" is a misleading phrase. Rather than the monolithic threat it describes, jihadism more closely resembles a worldwide insurgency with two competing standard-bearers: al Qaeda and the Islamic State. To make matters more complicated, grassroots extremists have been known to take inspiration from each group's ideology — and, in some cases, both. This complex network of international organizations, local militancies and individual adherents cannot be dismantled by simply killing its members and leaders one by one. Instead, governments around the globe will have to split off local groups from the Islamic State and al Qaeda ideologies they have chosen to adopt and tackle them separately using the principles of counterinsurgency if the jihadist movement is to be eradicated once and for all.