<P> Planning for the attack on Pearl Harbor had begun in very early 1941 , by Admiral Isoroku Yamamoto . He finally won assent from the Naval High Command by , among other things , threatening to resign . The attack was approved in the summer at an Imperial Conference and again at a second Conference in the fall . Simultaneously over the year , pilots were trained , and ships prepared for its execution . Authority for the attack was granted at the second Imperial Conference if a diplomatic result satisfactory to Japan was not reached . After final approval by Emperor Hirohito the order to attack was issued at the beginning of December . </P>
<P> Planning for the attack on Pearl Harbor had begun in very early 1941 , by Admiral Isoroku Yamamoto . He finally won assent from the Naval High Command by , among other things , threatening to resign . The attack was approved in the summer at an Imperial Conference and again at a second Conference in the fall . Simultaneously over the year , pilots were trained , and ships prepared for its execution . Authority for the attack was granted at the second Imperial Conference if a diplomatic result satisfactory to Japan was not reached . After final approval by Emperor Hirohito the order to attack was issued at the beginning of December . </P>
who made the decision to bomb pearl harbor
who made the decision to bomb pearl harbor
Emperor Hirohito
Emperor Hirohito