Dee ihe na-esote paragraf a - Enwere ike ịhụ mkpa Ōshima dị maka Hitler n'eziokwu ahụ bụ na mgbe emechara nkwekọrịta Anti-Comintern, onye nnọchi anya US na Japan, Joseph Grew, kwuru na nkwekọrịta ahụ bụ isi nke ọrụ Ōshima, na-enweghị òkè nke Ministry of Foreign Affairs Japan. N'ihi nkwenye siri ike nke gọọmentị Nazi, ọ laghachiri Berlin dị ka onye nnọchi anya na February 1941, ma nọgide n'ọkwá ahụ ruo mgbe ndị Germany surrendered na May 1945
Ọ dị mma. O tinyere mgbalị ya n'ime ka mmekọrịta dị n'etiti mba abụọ ahụ sikwuo ike. Nke a gụnyere imekọ ihe ọnụ n'agha na mpaghara Indian Ocean (n'ụdị agha agha ụgbọ mmiri na-azụ ahịa). O kwenyesiri nnọọ ike n'echiche ndị Nazi nke na onye nta akụkọ America bụ́ William L. Shirer, n'akwụkwọ ya bụ́ "The Rise and Fall of the Third Reich", dere na Ōshima bụ "onye Nazi karịa ndị Nazi".