KAOBAGOU, Benin—Gunmen pulled 18 villagers from their homes during a night raid this spring, shooting some and slitting the throats of the rest. They wedged hand grenades under the bodies, laying a trap for those who would discover the grisly scene. Two more villagers were later killed when they moved the corpses and triggered the explosives. By then, the attackers were hiding in nearby Pendjari National Park, a refuge for thousands of elephants, herds of antelope, the last few West African cheetahs and, increasingly, Islamist militants.

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Organizations: Benin — Gunmen Locations: KAOBAGOU, Benin, Pendjari