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.
Admiralty Islands campaign The Admiralty Islands campaign (Operation Brewer) was a series of battles in the New Guinea campaign of World War II in which the United States Army's 1st Cavalry Division occupied the Japanese-held Admiralty Islands.