What was Isoroku Yamamoto's role in "the most stunning and decisive blow in the history of naval warfare."?
Isoroku Yamamoto Isoroku Yamamoto (山本 五十六 , Yamamoto Isoroku , April 4, 1884 – April 18, 1943) was a Japanese Marshal Admiral of the Navy and the commander-in-chief of the Combined Fleet during World War II until his death.
Action of 13 May 1944 The Action of 13 May 1944 refers to the sinking of an Imperial Japanese submarine in the Atlantic Ocean during World War II. An American destroyer escort attacked the former German U-boat "U-1224" , which had been given to the Japanese Navy and renamed RO-501. The boat was the first of two Japanese vessels sunk in the European Theater of Operations.