Introduction The contemporary security architecture of northern Nigeria faces an existential crisis of geography. Across the vast, semi-arid plains of the North-West and the rugged, marshy terrains of the North-East, the traditional concept of West African border management has effectively collapsed. Porous frontiers shared with Niger, Chad, and Cameroon have morphed into gray-zone corridors, facilitating the unhindered influx of armed bandits, cattle rustlers, and jihadist insurgencies like Boko Haram and Islamic State West Africa Province (ISWAP). Faced with thousands of kilometres of unmonitored borderland, contemporary security discourse often defaults to a false dichotomy: the impossible task of building physical walls across the Sahel, or the passive acceptance of territorial fluidity. To break this impasse, state strategists must look backward to leap forward. In 122 AD, the Roman Empire faced a structurally analogous dilemma on its northernmost frontier in Britain. Empero...
What a Diverse World?