(TOKYO) — Japan’s central government started main reclamation work Friday at a disputed U.S. military base relocation site on the southern island of Okinawa despite fierce local opposition. Construction workers dumped a truckload of sediment and bulldozed it into the sea at Henoko on Okinawa’s east coast to build a runway for a Marine Corps base that will be relocated from densely populated Futenma in the southern part of the island.