Kammala wannan jumla: Japan, babban abokin kawancen Amurka, ya shiga cikin takaddama ta diflomasiyya da China kan ikon Kudancin Tekun China. A lokacin da Sakatariyar Harkokin Wajen Hillary Clinton ta fara ziyarar Gabashin Asiya, ta tabbatar wa jami'an Japan cewa Japan tana da mahimmanci a cikin cibiyar sadarwar kawancen Amurka. A cikin martani ga
2011 Tōhoku girgizar kasa da tsunami, Amurka ta fara Operation Tomodachi don tallafawa Japan a cikin bala'in bala'i bayan girgizar kasa da tsunami na 2011 Tōhoku da ke samun godiya daga ministan tsaron Japan, Toshimi Kitazawa wanda, yayin da yake ziyartar "Ronald Reagan", ya gode wa ma'aikatansa don taimakonsa a matsayin wani ɓangare na Operation Tomodachi yana cewa, "Ba a taɓa ƙarfafa ni ba kuma ina alfahari da cewa Amurka abokiyarmu ce".