In the original history, the US military's advance on Leyte Island was very difficult and they were unable to move for a long time. In the end, the US military landed on the other end of the island and adopted a two-sided attack. It took more than two months until they got close to this point.

At the last moment of the year, on December 30, the island was finally captured.

But in this space, the investment of fuel-air bombs made the Japanese fortifications that originally caused the US military a headache became vulnerable. To capture a group of tunnels and bunkers, the Americans could only use the Marine Corps' method.

, use more casualties and solve them in less time with grenades, blasting canisters, and flamethrowers; or use the army's method, use endless bombing, artillery bombardment, fire-breathing tanks, and armored bulldozers, spending a few days

Even a few weeks to resolve them.

But now the investment in fuel-air bombs has changed this situation. The fortifications that used to take two to three days, or even a week, now only need to drop a few bombs, and then wait ten minutes before sending people up to pick them up.

So the progress of the U.S. military suddenly accelerated, and the main reason restricting the U.S. military's advancement speed has changed from the enemy's resistance to the difficult road in the jungle. From the investment of fuel-air bombs to the U.S. military's final occupation of the entire

The island actually only took a little more than a week.

After the first few blows, the Japanese also realized that their fortification groups could no longer provide them with any effective protection, and it would only become their graveyard. They discovered that the efficiency of fighting in the fortification groups was

It was not even as efficient as field combat. So in the last few days of the battle on Leyte Island, the Japanese army gave up their fortifications. They tied white strips of cloth on their heads with red letters such as "Martial luck lasts forever" and served as officials.

brandishing command knives, while the soldiers held up their Type 38 rifles or Type 99 rifles equipped with Type 30 bayonets, shouting the slogan "Emperor's Class", and under the cover of night, launched a "death assault" towards the US military.

.This kind of impact tactic was called "Pig Charge" by later generations, that is, it was an untactical tactic of charging straight up like a wild boar with its head down.

However, since Guadalcanal, the US military has become very familiar with the Japanese habit of launching such attacks. With the current progress going so smoothly, General MacArthur has reminded his officers more than once about the possibility of the Japanese launching night attacks.

.So the "cowards" of the U.S. Army usually stop advancing at 2:30 in the afternoon, look for suitable camps, and make various defense preparations. During this period of time, the U.S. soldiers made bald heads

It was something that the strong envied. In order to ensure the shooting range, they would often cut down all the trees within more than 100 meters from the camp. They would also pull up barbed wire and arrange the fire points of machine guns and mortars. As a result, the Japanese army's pigs mutated and became harmonious.

Giving away heads makes almost no difference.

However, the Japanese on the island, before the collective "Jade Breaking", still remembered to send a telegram to Yamashita Fengfumi, reporting the use of fuel-air bombs by the US military to Yamashita Fengfumi.

The rapid fall of Leyte Island greatly exceeded the expectations of Yamashita Tombumi, known as the Malayan Tiger. Regarding the situation of the US military's suffocation bombs, the Japanese were not ignorant. A few months ago, the Germans informed the Japanese

This information was provided. However, the Japanese army never paid attention to intelligence and did not take the German warnings seriously.

The so-called Japanese do not pay attention to intelligence actually means that the Japanese do not pay attention to the analysis and research of intelligence. When it comes to collecting intelligence, the Japanese still put a lot of thought into it. For example, in the battle against China, the military maps used by the Japanese army were even larger than those used by China.

The maps used by the ** team were more detailed and accurate. However, after obtaining the information, the Japanese were not willing to spend a lot of effort to study them. They often just looked at them casually and then classified them into files.

As a result, after knowing that the Americans had thrown this thing over the heads of the Japanese, the Japanese began to wonder whether the Americans had used "decisive gas", and some even clamored to use Japan's "decisive gas".

Counterattack the Americans' "Decisive Gas". Fortunately, there are not too many stupid fools like this, and most decision-makers have figured it out - if they throw chemical weapons, the Japanese will definitely suffer.

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In the midst of the chaos, Yamashita asked his superiors to immediately investigate the Americans' new weapons and how to deal with them. As a result, they conducted a domestic investigation and told Yamashita that the information on this thing had been available for a long time and was placed in the archives of the base camp.

.

As a result, these important pieces of information that had been obtained long ago began to be taken seriously, and each general was sent a piece of such information.

Iwo Jima, Subayashi Tadamichi's headquarters.

"Baga! These idiots! Why are you showing us this information now!" Tadashi Arubayashi was losing his temper. Papers, pens, and paperweights were thrown all over the floor.

"What happened to the base camp! Such important information was notified to us just now! Go and send a report to the base camp and tell the base camp that they should check whether there are American spies among them!" Tadamichi Arubayashi yelled at his adjutant.

.

"Hai!" the adjutant agreed, and at the same time bowed to Tadashi Subayashi, but he did not really leave to send the report, because he knew that the general was just talking angrily. If there is someone in the base camp,

American spy, then he didn't just throw this information into the archives and archive it.

"These idiots!" Tadashi Arubayashi continued to curse. He couldn't bear it any longer. He spent a long time making the decision to abandon the beachhead, dig deep holes for a protracted war, and then personally lead the defense of Iwo Jima.

The troops worked day and night to turn the Japanese locust army into a rat army. It was not easy, and a defense system based on underground fortifications was built on Iwo Jima. But at this time, they were told,

The enemy has a weapon that can restrain his own deployment. He must make major improvements to all his fortifications, otherwise there will be only a dead end!

"Damn it! Order to slow down the construction of the fortifications first, and ask the base camp to send us a large number of oxygen bottles. Also, send me some construction experts!" Tadashi Arubayashi vented for a while, calmed down, and said

The adjutant said so.

Compared with the furious Tadashi Kuribayashi, Yamashita Tomofumi's performance was much smoother. Unlike Iwo Jima, the Philippines is larger and has more room for maneuver. It is certainly not a good thing for the Americans to have new weapons, but changing tactics is also

It's not that he can't fight. And, at least for now, the Americans' rapid advance has allowed him to avoid a big trouble.

After the Battle of Leyte Gulf, the Japanese Navy can basically be said to have been completely wiped out. So how much loss did the US military suffer? The Japanese made a decision based on the reports of their own pilots and other combatants, and with reference to the results of the sea and air battles in Taiwan's offshore waters.

This judgment: at least 7 large American aircraft carriers were sunk, and a large number of other ships were sunk or damaged. In other words, the US fleet has also lost its combat effectiveness.

Yamashita Tomofumi did not believe this judgment at all. But what was terrible was that there was a guy named Juichi Terauchi who believed in it. What was even more terrible was that this guy was his immediate boss - the commander-in-chief of the Japanese Southern Army.

Commander. He believed that the U.S. Navy had suffered serious losses and that the Allied ground forces were difficult to defend. Therefore, Terauchi forced the commander of the 14th Front on the Philippine side, General Tomofumi Yamashita, to provide supplies and reinforcements to the defenders of Leyte Island.

Based on the judgment of his staff and the testimony of captured US pilots, Yamashita found that the US Navy was almost unscathed. Under such circumstances, crossing the 730-kilometer sea to reinforce Leyte Island was the same as committing suicide. However, the official level of the officer killed a person, Juichi Terauchi.

He never believed that the U.S. military was unscathed, and even believed that those who doubted the Japanese military's results were "non-nationals" who had lost confidence. Therefore, under the pressure of "political correctness", Yamashita had to start preparing for this desperate cross-sea reinforcement operation.

"It would be great if this guy committed seppuku in 36 years old!" Yamashita, who was forced by Juichi Terauchi to plan to commit suicide, scolded this guy in private. At this time, Wright

News came from the other side of the island that the U.S. military was making rapid progress and that the defenders were determined to "break the jade into pieces." This news shocked Yamashita, but at least for now, there was no need to consider the desperate reinforcement plan. (In history, this time,

The result of the reinforcements was that a large number of troops fed the fish.)

"It's just that how to deal with this kind of American bomb in a defensive war is really a troublesome problem." Yamashita thought.

…

"The original defenses must be renovated. Each bunker must be equipped with an airtight bomb shelter. A certain number of oxygen bottles or other oxygen-enhancing equipment must be stored inside. Double-layered doors must be prepared for underground passages.

, the door must be made of steel and must be of sufficient thickness. In addition, the tunnel between the two doors should preferably have two explosion-proof twists..." An expert was explaining to Tadashi Kuribayashi how to deal with the US military's fuel-air bombs.

.

"Professor, if this happens, the entire project will be much larger." Tadamichi Kuribayashi said, "Our time and resources are difficult to meet such requirements. Is there any way to simplify it? For example, it is difficult for us to have such a requirement.

With more oxygen cylinders, can we use some oxidants, such as hydrogen peroxide or potassium permanganate to temporarily produce oxygen? For example, the cost of those steel doors is too high, can they be replaced by other methods?"

"General, hydrogen peroxide is dangerous, and improper storage can easily cause accidents. As for the door, it is difficult to ensure its strength with other materials," the expert replied.

"Is it no problem if it is stored properly?" A staff officer interjected, "Also, if we make the door smaller so that we can only crawl in and out, we should be able to save a lot of materials?"

"Wouldn't it become a dog hole to enter and exit like this?" Another person retorted, "Besides, the entry and exit speed of such a door is too slow."

"As long as we can fight against the evil beasts of the United States, there's no point in digging into a dog hole! As for the slow speed, wouldn't it be better to intensify training!"
Chapter completed!