Japanese settlement in the Marshall Islands Japanese settlement in the Marshall Islands Japanese settlement in the Marshall Islands was spurred on by Japanese trade in the Pacific region. The first Japanese explorers arrived in the Marshall Islands in the late 19th century, although permanent settlements were not established until the 1920s. As compared to other Micronesian islands in the South Pacific Mandate, there were fewer Japanese who settled in the islands. After the Japanese surrender in 1945, the Japanese populace were repatriated to Japan, although people of mixed Japanese–Marshallese heritage remained behind. They form a sizeable minority in the Marshall Islands' populace, and are well represented
History of the Marshall Islands to abandon their islands in decades, not centuries, as previously thought". A report in mid 2017 by Stanford University, some 70 years after 23 atomic bombs were detonated on Bikini Atoll, indicates abundant fish and plant life in the coral reefs. That area of the islands was still not habitable by humans, however, due to contamination by radioactivity. A 2012 report by the United Nations had indicated that the contamination was "near-irreversible". History of the Marshall Islands Micronesians settled the Marshall Islands in the 2nd millennium BC, but there are no historical or oral records of that period. Over time,