Japan bụ onye otu G7, APEC, na "ASEAN Plus Three", na onye so na East Asia Summit. Japan bịanyere aka na nkwekọrịta nchebe na Australia na March 2007 na India na October 2008. Ọ bụ onye nke ise kachasị enye onyinye enyemaka mmepe gọọmentị, na-enye US $ 9.2 ijeri na 2014. Na 2017, Japan nwere nke ise kachasị netwọk diplomatic na ụwa. Japan nwere njikọ chiri anya na United States. Kemgbe mmeri nke Japan site n'aka United States na ndị enyi ya na Agha Ụwa nke Abụọ, mba abụọ ahụ nọgidere na-enwe mmekọrịta mmekọrịta akụ na ụba na nchebe. United States bụ nnukwu ahịa maka mbupụ Japanese na mbubata mbubata nke Japanese, ma na-agbachitere mba ahụ, na-enwe ntọala na Korea maka nzube ahụ. Mgbe mmeri nke Agha Ụwa nke Abụọ, Japan bịanyere aka na nkwekọrịta nchebe na Australia na India na Ọktọba 2008.
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