Reuters reports that “the United States and Japan held a ceremony on Wednesday marking the U.S. military’s return of nearly 10,000 acres (4,046 hectares) of land on Okinawa island to the Japanese government, the largest transfer since 1972.”

“Resentment on the southern island has simmered for years among residents opposed to the U.S. Marines’ Futenma air base there. They want the base moved off the island but the central government aims to relocate it to a less-populated part of Okinawa.”

“Prime Minister Shinzo Abe and the U.S. ambassador to Japan, Caroline Kennedy, attended the ceremony in Tokyo, with another event on Okinawa planned for Thursday.”