In an increasingly interdependent world economy, political disputes between neighboring states can rapidly turn into economic shocks. This paper examines the local economic footprint of one such episode, the closure of the Benin–Niger border following the July 2023 coup in Niamey, which severed the Cotonou–Niamey corridor, Niger’s main gateway to the sea. Using satellite night-time lights over 19,029 grid cells of 10 km × 10 km across five West African countries, we estimate a twoperiod difference-in-differences design comparing cells near the disrupted corridor, the alternative corridors, and the three seaports that anchor them, before (2022) and after (2024) the shock. We find no robust contraction of night-time light along the disrupted corridor. The measurable adjustment is concentrated at the maritime gateways. All three port zones grew relative to the interior, and the port of Tema in Ghana significantly outgrew the disrupted gateway of Cotonou by about 13.6 percent, whereas Lomé did not. The results suggest that trade reallocation materializes where diverted cargo physically lands rather than along inland routes, and that night-time lights may register activity at nodes more readily than flows along corridors.