A/N: This was written for my Naval Junior Reserve Officers Training Corps class back in December, and I was very enthusiastic about the topic. The first and last paragraphs were required - Stating why I researched this topic, then what I learned from the topic.
The Assault on Pearl Harbor
And the Preceeding Events
The attack on Pearl Harbor is an event in which I have heard of a lot, but know nearly nothing about. I did not know why Japan attacked the U.S., the details of the attack, or any other information aside from the loss of the USS Arizona. Researching this topic gave me the information I lacked, especially of the events leading up to December 7, 1941.
On December 7, 1941, a Japanese surprise attack known as Operation Z by the Japanese targeted a United States naval base at Pearl Harbor in Hawaii. The purpose of this attack had been to prevent the United States Pacific Fleet from interfering with the Japanese Navy’s movements in Southeast Asia and the overseas territories of the Allies.
By neutralizing the Pacific Fleet, Japan hoped to protect it’s movements into the Dutch East Indies and Malaya, where they wanted to gain control of natural resources such as oil and rubber. Since the 1920’s, both the U.S. and Japan were aware of the strong possibility of war; Especially after Japan’s invasion of Manchuria in 1931. Between 1931 and 1941, Japan continued to push into China, resulting in full war between the two nations in 1937. Japan focused on isolating China, and in gaining resource independence to assist with the battlefronts on the mainland.
Attempting to control supplies reaching China, Japan invaded French Indochina in 1940. As a result, the United States halted all shipments of aircraft, parts, tools, and gasoline. Japan viewed this as an unfriendly act. However, the U.S. did not stop oil exports to Japan at that time, as Washington believed that would be a step too far, and would be a provocative act against Japan.
In 1941, the Pacific Fleet was moved from its old base in San Diego, to Pearl Harbor in Hawaii. A military build up was also ordered in the Philippines, planning to deter Japan forces from advancing on the Far East. Because of Japanese certainty that the U.S. would get involved if British Southeast Asian colonies were attacked, they believed a preemptive strike on the United States was necessary to prevent U.S. Pacific Fleet involvement.
In July of 1941, the United States cut off Japan from oil exports, after an invasion of French Indochina. As a result, Japan also moved to take the Dutch East Indies to claim their oil. Japan began planning an attack on Pearl Harbor, to protect their movements in the ‘Southern Resource Area’ (Japanese term for Southeast Asia). Japanese Admiral Isoroku Yamamoto, the commander of Japan’s Combined Fleet, was also in command of the planning process. The Japanese used the 1940 British air attack on Taranto as a study basis for the attack on Pearl Harbor.
The attack held several objectives. First, by destroying important fleet ships, the Pacific Fleet was to be crippled to prevent interference with the Japanese conquest of Malaya and the Dutch East Indies. Additionally, Japan needed time to consider it’s position and beef up naval strength before shipbuilding reduced a chance of victory to nothing. Finally, American morale was to take a heavy blow, discouraging the United States from committing to the war. In an effort to maximize this final effect, Japan chose battleships as their main targets – The prestige ships of any navy of the time period. Overall, Japan wanted to conquer Southeast Asia without any interference.
On November 26, 1941, the Japanese sent a task force, aka the ‘Striking Force’, to a position north-northwest of Hawaii, with intent to launch an attack on Pearl Harbor. Six aircraft carriers launched 353 Japanese aircraft at the base in two successive waves. The first wave was the main attack, equipped with weapons designed to take out capital ships. The second wave was to finish off whatever was left. Fighters were ordered to strafe the docks, destroying grounded aircraft and anti-air emplacements.
The Japanese attack succeeded in sinking four U.S. battleships and damaging the other four. In addition, three cruisers, three destroyers, an anti-aircraft vessel, and a minelayer were also damaged and sunk. The U.S. lost 188 aircraft and 2,402 men, with another 1,282 men being wounded. Showing the focus of Japanese efforts, the power station, shipyard, maintenance, and fuel and torpedo storage facilities were not attacked. Submarine piers and the headquarters building were also left untouched. On the Japanese side, only 29 aircraft and 5 ‘Midget’ submarines were lost, with 65 men killed and 1 man captured by the U.S.
This attack led directly to the U.S. joining World War II in both the Pacific, and Europe, after U.S. civilian outrage from the attack that resulted in part from a lack of any formal declaration of war or warning from the Japanese. On the following day, the United States had declared war on Japan after the famous ‘Infamy Speech’ from President Roosevelt, as the original policy of neutrality disappeared. In turn, both Germany and Italy, due to U.S. actions and the the Axis alliance, declared war on the United States, whom returned the favor the same day.
In the end, Japan brought the United States into World War II with their attack on Pearl Harbor. Additionally, Japan’s attack on Hawaii stemmed from a belief that the U.S. was going to join the war and deter their actions if they did not strike first. Japan may have been wrong, but its impossible to tell as things did not go that route.
References
"Attack at Pearl Harbor, 1941." Eyewitness to History. Eyewitness to History, 1997. Web. 7 Jan 2011. <http://www.eyewitnesstohistory.com/pearl.htm>.
"Attack on Pearl Harbor." Wikipedia. Wikimedia, 04 Jan 2011. Web. 7 Jan 2011. <http://en.wikipedia.org/wiki/Attack_on_pearl_harbor>.
"Attack on Pearl Harbor." World War II History Info. World War II History Info, 2010. Web. 7 Jan 2011. <http://www.worldwar2history.info/Pearl-Harbor/>.



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