Rubuta ci gaba don wannan sakin layi - Kasuwancin Jafananci a yankin Pacific ne ya haifar da zaman Jafananci a tsibirin Marshall. Masu binciken Japan na farko sun isa tsibirin Marshall a ƙarshen karni na 19, kodayake ba a kafa mazauna na dindindin ba har zuwa shekarun 1920. Idan aka kwatanta da sauran tsibiran Micronesia a cikin Yankin Kudancin Tekun, akwai 'yan Japan da suka zauna a tsibiran. Bayan Jafananci sun mika wuya
a cikin 1945, an mayar da jama'ar Japan zuwa Japan, kodayake mutanen da ke da al'adun gargajiyar Japan-Marshallese sun kasance a baya. Sun kasance 'yan tsiraru ne a cikin yawan jama'ar tsibirin Marshall, kuma suna da wakilci a cikin kamfanoni, jama'a da kuma bangarorin siyasa a kasar.