Too Great a Challenge: The Mismatch of U.S. Intelligence Capabilities and Mission Prior to Pearl Harbor

As the new information community could not determine the time and place of the attack, the US was not ready for Japanese attacks on Pearl Harbor. The problem of preventing attacks is beyond the scope of intelligence agencies, and such behavior is the product of policy. Nonetheless, the information the intelligence agency provided to the president is insufficient to reduce the loss of the US on the eve of the Second World War. This result is not a complete responsibility of money shortage information and military assets due to fund shortage active in that field.

Pearl Harbor is not a coincidence; this is just a failure of the US information. The Federal Bureau of Investigation, State Department and Service Information Bureau played a direct role in Pearl Harbor attack. The mission of FBI is to manage the information community. Focusing on Pearl Harbor 's business is to investigate and report the activities assigned to the staff of the Honolulu Consulate and the staff of the Japanese Embassy. They recorded a number of observations and placed bugs even on official and informal phone lines. The FBI's most important source of information on attacks on information agencies by Pearl Harbor in Japan is the Honolulu Office. However, since the FBI has the ability to gather information, it can not yet provide the information necessary for military services related to Japanese spying activities in Hawaii. Ambassador Joseph Gul is the head of the American Embassy in Tokyo.

Only the United States stands on the way of Japan. The US Pacific Fleet of Pearl Harbor is the only force to challenge the Japanese Navy and the US military base in the Philippines may threaten the communication route between Japan's hometown and the East Indies. All tankers heading to Japan must pass through Luzon Island under the control of the United States. Based on these needs and restrictions, the war plan of Japan was established. First, the navy will attack the US fleet with a sudden attack on Pearl Harbor. Japan will also occupy the US central Pacific base of Guam and Vickers and will invade the Philippines. With the power of the US Navy, the Japanese army can freely grasp Myanmar, Malaya, Singapore and the Dutch East Indies through a series of rapid amphibious operations. Then Japan will build a defensive ring around its newly conquered empire by strengthening the South and Central Pacific Islands.

In the morning of December 7, 1941, Japan infiltrated the US Pacific Fleet Base in Pearl Harbor, Hawaii and as part of a plan to eliminate potential challenges for Japan's conquest in Asia. Attacks brought the United States as a fighter into World War II and took an expensive bloody struggle to defeat the Japanese empire. The events caused by the attack also led to make the United States a world superpower. As Peter Harris, assistant professor at the Colorado State University's political science wrote in 2017, this attack dramatically changed the diplomatic relations of the United States, "We made isolationism a powerful force of domestic politics and acknowledged overseas participation It's normal. "