失失敗の本質失敗の本質de Ikujirō Nonaka, Yoshio Suginō, Ryōichi Tobe, Yukio Doi, Hitoshi Kawano, Masayuki Yamauchi, Kenshū KikuzawaMateriasSenryakuTaiheiyō sensōCommand of troopsHistoryWorld War, 1939-1945Campaigns