Boko Haram was a vehicle for Muslim political interests inside and outside Nigeria to destabilize the oil-rich country. By the end, even the Obama administration made it clear that Muhammadu Buhari, the Muslim ex-dictator who had seized power in a coup before being overthrown, was their choice. Simpson reports that Secretary of State John Kerry “made a mockery of the administration’s pretext by hinting in January meetings with both Jonathan and Buhari that the Obama administration might allow weapon sales after the election.” Now the election came out their way, but the weapons sales may be surplus to requirements. Boko...