USA HISTORY

Detailed explanation-1: -By attacking Pearl Harbor Japan believes that it can severely cripple the U.S fleet and buy them time in the Pacific and Southeast Asia. So not only would they be able to launch their attacks without interference from the U.S they would also have time to dig in defensively and consolidate their gains.

Detailed explanation-2: -All six of Japan’s first-line aircraft carriers, Akagi, Kaga, Soryu, Hiryu, Shokaku and Zuikaku, were assigned to the mission. With over 420 embarked planes, these ships constituted by far the most powerful carrier task force ever assembled.

Detailed explanation-3: -Many of these ships were repaired and fought in later battles, and, crucially all three of the Pacific Fleet’s aircraft carriers were not at Pearl Harbor during the attack and so escaped damage. They were to prove vital in the coming Pacific Campaign.

Detailed explanation-4: -Their objectives included airfields on Oahu, including Hickam Field near Pearl Harbor and Ford Island amid that harbor. But their prime targets were the warships moored there.