Can Nigeria defeat armed groups alone?

A brazen jailbreak near Abuja claimed by ISIL led to more than 800 inmates escaping.

A daring attack on a maximum-security prison outside Nigeria’s capital has laid bare its persistent struggles with insecurity.

The ISIL (ISIS) group claimed responsibility for Tuesday’s jailbreak, which freed more than 800 inmates. About 400 prisoners are still on the run.

Among them: several commanders of ISIL and Boko Haram, two armed groups that have carried out a series of attacks…