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War in the Pacific
Pearl Harbour
• December 7th, 1941 Japan attacked Pearl Harbour, a major US Naval Station
• It was Sunday morning shortly after dawn and the Japanese managed to completely surprise the Americans
• The Japanese launched planes from their carriers with the goal of taking out as much of the US Navy as possible
• The Japanese attacked the ships moored along Battleship row
• http://plasma.nationalgeographic.com/pearlharbor/index.html
• The primary target was the USN carrier fleet, fortunately the carriers were at sea
• So the Japanese turned to the next largest ships. The targeted the Battleships moored along “Battleship row”
• Japanese Torpedo planes and bombers were extremely successful, sinking the Arizona,West Virginia, Tennessee, Nevada and Pennsylvania were all sunk
• The California and Maryland were severely damaged
• Arizona sunk when a 1700 pound bomb struck her forward magazine taking down 1100 men with her
• California after a torpedo hit
• The attack was devised by Japanese Admiral Yamamoto
• It was launched simultaneously with attacks on the Philippines, Hong Kong, Guam and Burma
• The Japanese had not declared war on the U.S. so the attack was treated as an act of cowardice
• Roosevelt declared war on December 8th, 1941
Doolittle Raid
• The United States responded by planning and executing the Doolittle Raid in April of 1942.
• The USS Hornet led a small task force near the Japanese homelands were they launched B-25 bombers to attack Japan
• The Japanese were caught completely off guard.• Little Damage was done but the impact on the
morale of both countries was affected
The Doolittle Raid
The Battle of Coral Sea
• The First major battle between the USN and the Japanese occurred at Coral Sea
• The Japanese were threatening to take Port Moresby which would have allowed them a base to launch operations against Australia
• At this point the Japanese Empire is at it’s greatest
• The Battle of Coral Sea was unique in that it marked the first time that a sea battle was fought solely between aircraft carriers
• Both forces spent a great deal of time trying to find the opposing forces
• Japan found the Americans first and inflicted great damage sinking the carrier Lexington and severely damaging Yorktown
• The US responded sinking the light carrier Shoho• The battle is considered a draw but the United
States prevented the Japanese from taking Port Moresby
The Battle of Midway
• The Battle of Midway was a turning point in the war in the Pacific
• The Japanese attempted to take Midway Island which would have allowed them to launch bombing raids on Hawaii
• The United States Navy met them at sea and engaged them in the largest sea battle of the war.
• The United States were able to decipher the Japanese code and knew of the attack plans
• Admiral Chester Nimitz hid his carriers to lull the Japanese into attacking
• The Americans searched frantically for the Japanese fleet
• The Japanese launched attacks on Midway in preparation of invasion
• US planes followed retreating Japanese planes and the carriers Enterprise, Yorktown and Hornet attacked the Japanese in full force
• The Japanese lost four of their large carriers to American attacks
• The carriers Soryu, Hiru, Ziuho were all sunk by Dauntless bombers and a fourth was severly crippled and was sunk by an American Submarine
• This represented the majority of the Japanese carriers and would prevent them from launching any further offensives
• They also lost many of their best and most experienced pilots
• From this point on the Japanese were on the retreat and the Americans were advancing
• The Americans broke their offensive into two campaigns both based on island hopping
• The Americans moved from one small Japanese held island to another
• They would then attack an island further along the line and cutoff the islands in between
Island hopping
• Relied on three main aspects; air power from the carriers, submarine warfare and amphibious assualts
• There were two main campaigns
• The first led by Admiral Nimitz and came from the West
• The second was led by General Macarthur and attacked north with the goal of recapturing the Philippines which he had lost two years earlier
• Nimitiz’s assault group proved to be more effective
• The forces under the command of Macarthur attacked the Japanese at Guadalcanal in August of 1943
• There were a series of fierce naval battles followed by an amphibious invasion of US Marines
• The battles for the island lasted until February of 1944, the battles were fierce but on a smaller scale than later battles
• The Americans secured the island and it’s vital airfield
• During the invasion of Guadalcanal the US successfully shot down a plane containing Japanese Admiral Yamamoto
• After Guadalcanal the Macarthur force moved on towards the Philippines, Nimitz began his campaign in early 1944 by taking the Marshall islands
• Battles such as Tarawa, Saipan were fierce and costly but the Americans were closing in on Japan
• Two key battles left the defeat of the Japanese as a forgone conclusion
• The first was the Battle of Leyte Gulf off the coast of the Philippines
• It was a massive naval battle, the Japanese were desperate and committed all their resources to this battle, either they would win or the war would be lost for the Japanese Navy
• The Japanese tried to lure Nimitz’s carriers away from the invasion fleet that they were attempting to protect
• Admiral Halsey took the bait and pursued the Japanese decoy fleet to the north
• The remainder of the Japanese attacked the invasion fleet destroying much of it
• Halsey recognizing his mistake split his task force
• Half went on to destroy the decoy fleet and the other half went back to engage the fleet which had attacked their invasion fleet
• The invasion of the Philippines continued as scheduled but Halsey’s blunder had been costly and he was fortunate to not have lost the entire invasion fleet
• The Americans recaptured the Philippines and Macarthur returned as promised
• The Japanese desperation was shown by the introduction of Kamikaze raids on US ships
• Kamikaze meant divine wind, they were suicide missions by novice pilots with the intent of destroying US warships
• The second battle was for a tiny island Iwo Jima
• It was the first step towards occupying Japan
• Iwo Jima was the scene of the most concentrated bombing campaign of the war
• The Marines landed and faced extremely stiff resistance as the whole island was a series of bunker and fortifications
• The USMC had to fight for the island inch by inch as the Japanese remained underground and were not going to surender
• Eventually the Americans were able to take the island which would serve as a base for an invasion of Japan
The Bombing of Japan
• With the capture of the island of Saipan the Americans were able to begin to bomb Japan
• Starting in November of 1944 American B-29’s rained down destruction on Japanese cities
• By March they began to target cities as targeting industry had been ineffective
• March 11-12 302 B-29’s dropped incendiary bombs on the city of Tokyo
• They created a massive firestorm which destroyed six square miles of the city and killed over 100,000 people
• Over the course of the next four months the Americans continued attacks against the major Japanese cities destroying much of the industrial capacity of the nation
• The Americans continued to demand an unconditional surrender from the Japanese
• The Japanese refused to surrender as it would require them to turn over the Emperor who was considered a god in Japan
• The Americans decided to use an experimental weapon to attempt to end the war
• The atomic bomb had been secretly created by the “Manhattan Project” in New Mexico at a cost of several billion dollars
• President Harry Truman ordered the use of the Atomic Bomb on Japan
• August 6th, 1945 the B-29 Enola Gay dropped an atomic bomb on the city of Hiroshima
• The city was destroyed with upwards of 200,000 killed instantly and many others who would die due to the effects of radiation
• The atomic bomb had the destructive power of 3,000 B-29 bombers
• The United States repeated their demand for unconditional surrender
• The Japanese refused and the United States dropped their second on Nagasaki on August 9th
• The Soviet Union declared war on Japan on the 8th of August
• This combined with the atomic bombing led the Japanese to agree to an unconditional surrender
• The Japanese signed the official documents of surrender on the 15th of August on the deck of the USS Missouri ending World War Two
• People across the US celebrated the end of the war
The Cost of War
• The war led to the deaths of 45 to 50 million people worldwide
• Europe and much of Asia lay in ruins due to the fighting
• The relationship between the United States and the Soviet Union had broken down to the point were a war between the two powers was a real possibility
• The ability of the industry of the United States to produce vast amounts of materials kept the Germans & Japanese from winning the war
• Without the industrial power of the United States the outcome of the war would have been very different
• The Americans supplied the Soviets, the British and rearmed themselves