Question: Who made the decision to bomb pearl harbor?
Answer: Emperor Hirohito
Disambiguated annotations:
qaPairs: question: Who made the decision to plan to bomb pearl harbor?
answer: Admiral Isoroku Yamamoto,  Rear Admiral Ryūnosuke Kusaka, with assistance from Captain Minoru Genda and Yamamoto's Deputy Chief of Staff, Captain Kameto Kuroshima
Japanese military leadership
question: Who made the decision to approve the plan to bomb pearl harbor?
answer: Hirohito
Emperor Hirohito