Admiral Yamamoto: The Man Behind Pearl Harbour December 6, 2021 Unipro2013main Imperial Japanese Navy, Military History, WW2 The Man Behind Pearl Harbour Isoroku Yamamoto was a Japanese Marshal Admiral of the Imperial Japanese Navy and the commander-in-chief of the Combined Fleet during World War II until his death. Credit to : Biographics Please support our Sponsors - Or Buy an Item from our Catalog