Japanese air attacks on the Mariana Islands 27 in preparation for operations against Japan itself. The USAAF bases in the Mariana Islands were within range of a number of Japanese air bases in the Pacific. These included Wake Island to the east, Truk and the Gilbert and Marshall Islands to the southeast, Woleai to the south and Yap to the southwest. To the north the Japanese had air bases in the Nampo Shoto chain of islands and Bonin Islands, which included three airstrips on Iwo Jima. Several of the minor islands in the Mariana chain also remained in Japanese hands, and there were airfields on Rota and
Japanese settlement in the Marshall Islands population on the islands was repatriated back to Japan. People of mixed Japanese–Marshallese heritage generally stayed behind, although a few were granted an option if they were above 16 years old. The Japanese–Marshallese quickly assimilated with the Marshallese in the years after the war. Many of them became politicians and businessmen, and in the 1970s people of mixed Japanese–Marshallese heritage controlled most of the private enterprises in the state. Japanese–Marshallese politicians generally held critical opinions on nuclear weapon tests carried out by the United States in Operation Crossroads. At least one ethnologist, Greg Dvorak suggested that the shared Japanese and