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 on a Burns Philp steamer noted that the most Marshallese women wore the kimono instead of the traditional loincloth ("lavalava" in Marshallese) in October 1918. Interethnic relations between the Japanese settlers and civil servants with the Marshallese were friendly, but racial segregation was enforced between Japanese and Micronesians in the workforce and educational sectors. As compared to Micronesians from other islands, Marshallese generally retained more aspects of their traditional lifestyles, relative to the small Japanese populace in the islands. Contrary to Japanese settlements in the other mandated islands, settlers consisted mainly of single men, and intermarriages with Marshallese women were