Walls line a railroad to prevent migrants from accessing trains to Britain, near Dunkirk, northern France, Aug. 26, 2026. Thousands of migrants cross the sea between France and England each year, though numbers have fallen amid increased policing. (Dmitry Kostyukov/The New York Times) By SÉGOLÉNE LE STRADIC and MARK LANDLER On a warm, windless evening last month, some 40 African migrants gathered at a bus stop in Dunkirk, on the northern coast of France. Many carried plastic bags stuffed with…
