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The Battle for Iwo Jima

The Battle for Iwo Jima. February – March of 1945. Strategic Location. The US wanted to capture Iwo Jima because of its location. It lies halfway between Tokyo and the US controlled Marianas, and would serve as a safe place for crippled bombers to land after bombing runs on Japan. The Island.

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The Battle for Iwo Jima

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  1. The Battle for Iwo Jima February – March of 1945

  2. Strategic Location • The US wanted to capture Iwo Jima because of its location. It lies halfway between Tokyo and the US controlled Marianas, and would serve as a safe place for crippled bombers to land after bombing runs on Japan.

  3. The Island • This is a photo of the island. It is about 7 or 8 square miles total. Mount Suribachi is seen in front.

  4. Here is a map of Iwo Jima. Mount Suribachi is on the southern tip.

  5. “Sulfur Island” • Iwo Jima, in Japanese, means “sulfur island.” It is made of volcanic ash and sulfur deposits from the Pacific. • Before WWII, civilians lived there and there were mining facilities, as well. When the war started, the civilians were moved, and the Japanese built airfields for bombers. • There is an extensive series of tunnels and caves in the island that were fortified with concrete. Japanese engineers also built quarters for soldiers in the tunnels.

  6. Hell with the fire out • Iwo Jima’s beaches were not made of sand, but made of very soft ash. This would making walking difficult and running impossible. This would also make it very hard for landing craft to beach and tanks to roll out of them. • One observer remarked, “It was like hell with the fire out.”

  7. Preparing for Attack • The Japanese sent Lieutenant General Tadamichi Kuribayashi to the island to command. He strengthened the garrison there to 21,000 men. • The island was fortified by anti-aircraft guns, big naval guns, machine guns, mortars, and rockets. After that, the beach was rung with bunkers, blockhouses, and pillboxes.

  8. Shelling the island • American Battleships Texas and New York, along with Superfortresses shelled Iwo Jima for months, making it the longest sustained bombing of WWII. • This barely did anything to the bunkers, but it knocked out a great deal of the beach defenses and large artillery.

  9. The Battle • Kuribayashi’s plan was to wait for the American forces to land, and then rake the beaches with fire. • 30,000 US Marines landed on the island • When the Americans landed under the command of General Schmidt, they had much more difficulty from the ash and steep terraces than they did from the Japanese, but as soon as the majority of them were on the beach, the Japanese open fired on them. • They suffered heavy losses as they made their way up, but by nightfall, they isolated Mount Suribachi. It took them three days to take the mountain over, because they were fighting uphill, and the Japanese’ caves were heavily fortified.

  10. Flag Raising on Mount Suribachi • 23 Feb: 5th day of battle – lasted another month • 5 Marines and 1 Sailor raised the flag • 3 of the Marines died on the island • 2 Flag Raisings

  11. The Northern Plateau • The capture of Suribachi lifted the spirits of Marines, but the island was not even close to being taken. • The Marines still had the northern plateau which would be extremely difficult to take, especially with even more caves and concealed positions.

  12. The Northern Plateau (cont’d) • Kuribayashi had learned from other Japanese defeats that suicide bombers were often more costly on his own than on the Americans. He resisted the temptation of it and instead had his men remain in their positions and shoot. • This proved far more effective in slowing the advance of Americans.

  13. Flushing out the caves • As in other Pacific island battles, flamethrowers, flame tanks, and TNT were the most effective weapons in the battle. • The TNT was used to blow the tunnels wide open. • Flame tanks and flamethrowers were positioned at the entrances of the tunnels. When they shot, the fire would go deep into the caves and flush out whatever soldiers weren’t torched.

  14. Victory • This bloody struggle continued for weeks as the Marines continued to clear the area. • When the end was near, the Japanese had only two small pockets of defense at the extreme northern part of the island. The remaining Japanese did resort to a series of suicide attacks. • Fighting ended on March 23, 1945.

  15. Statistics • 30% of the Marines that landed on Iwo Jima died (6,821). 17,000 were wounded • Almost all of the Japanese were killed, including Kuribayashi (approx. 21,000). • 1/3 of all USMC killed in WW II killed on Iwo • 27 Medals of Honor • 2,400 disabled B-29 bombers landed on the island: 30,000 American Airmen

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