Hambantota, in southern Sri Lanka, was a sleepy seaside village devastated by the 2004 tsunami. Famous for salt flats and a searing climate, it’s most celebrated building was a British-built watchtower, now home to a fisheries museum.

Gwadar, likewise, until seven years ago, was a fishing town in Baluchistan on Pakistan’s south-western shoreline. An enclave on the Arabian Sea given to Islamabad by the Aga Khan, it was not much thought of as a key staging point between central Asia and the Gulf.