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.
Battle of Rennell Island The Battle of Rennell Island (Japanese: レンネル島沖海戦) took place on 29–30 January 1943. It was the last major naval engagement between the United States Navy and the Imperial Japanese Navy during the Guadalcanal campaign of World War II. It occurred in the South Pacific between Rennell Island and Guadalcanal in the southern Solomon Islands.