The expeditionary force began to dominate Southeast Asia by recruiting defeated soldiers

At this time, the situation on the battlefield in western Yunnan had become extremely intense, especially with the double-line attack from the Western Yunnan Expeditionary Force and the Anmin Army, Honda Masazai faced unprecedented pressure.

As the Yunnan-West Expeditionary Force commanded by Wei Junru began a full-scale attack on the triangle area of ​​Tengchong, Songshan and Longling from the east, battle reports from the eastern front came in like a tide, each with a common theme - "emergency."

At this time, judging the enemy's offensive focus, deploying reserve troops, interrupting the enemy's offensive rhythm, and waiting for an opportunity to counterattack and regain lost territory have become empty talk.

For the sake of "international image", the White Party was really ruthless this time. The Japanese positions in various places sent out distress calls. Honda Masazai only felt that the enemy's main forces were everywhere. He had completely lost sight of the big picture and could not judge where the focus of the attack should be.

At this moment, the eastern defense line was in danger and he could not squeeze out more troops to reinforce the Anmin Army's attack on the west side of Longling.

So the commander-in-chief of the Eastern Route Army, who was in charge of the front line, easily captured a series of Japanese strongholds including Longhua Mountain, Sanhekou, Chishagang, Heihu Rock, Shangxia Xiaoxi Village, and quickly advanced to the last stronghold of the Japanese outside Longling County - Xiaodong Mountain.

Less than a week after the war began, Honda Masazai, who had thought he could hold out for more than a month, discovered in despair that the enemy was less than 5 kilometers away from Longling County.

"If I had known earlier, I should have built more fortifications on the west side in addition to the east side." Honda Masazai looked at the stronghold that was quickly disappearing on the map, his heart filled with regret.

After all, according to pre-war calculations, Zhang Chi's troops should have taken the initiative to move south to the wealthy Mandalay. Therefore, the fortifications that the Japanese hurriedly built were all facing the direction of the national army on the other side of the Nujiang River. No one would have thought that Zhang Chi would use his main force to attack western Yunnan, which had almost nothing to do with him.

In reality, even with the old Burma Road, the daily fuel and spare parts consumption of tens of thousands of mechanized troops from the Eastern Route Army pouring into the western Yunnan corridor would still be astronomical. Yet Zhang Chi did this uncharacteristically, and Honda Masazai wanted to ask him loudly, "Is it worth it?"

However, Zhang Chi was so persistent in opening up the land route between Pegu and Qian Kingdom. He did this not only to open up the aid channel as soon as possible and avoid the great defeat of Henan, Hunan and Guangxi, but also to launch a larger-scale immigration.

The scale of transporting immigrants between Chuncheng and Myitkyina by hundreds of C-47s had long since failed to satisfy Zhang Chi.

You have to know that because the White Party used water to lead their troops and dug up the Yellow River embankment, coupled with the subsequent locust plague and drought, there are now hundreds of millions of disaster victims in Henan Province. In addition, countless people in various provinces have been displaced by war and famine.

There are still large areas of rainforest and farmland in Bago that have not been developed. These are good lands with abundant rainfall and three harvests a year. Zhang Chi plans to open an overground passage and directly migrate tens of millions of disaster victims into Bago, completely changing the local population balance.

Honda Masazai, who had no idea of ​​Zhang Chi's thoughts, stared at Xiaodongshan on the map and muttered to himself:

"Hehehe, this was originally intended to be a super fortress that would continue to hold out after Longling fell. Since the Anmin Army attacked first, I'll use this fortress to drain your blood."

Thinking of the solidity of the Xiaodongshan fortress, Honda Masazai even hummed a Dongyang tune with satisfaction, waiting for the Eastern Army to rush into this battlefield meat grinder.

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In fact, Honda Masai does have the right to be proud.

Like the fortresses on the mountains near Songshan and Tengchong that the Japanese used as the core of their positions, the many outer fortresses on Xiaodong Mountain were not only covered with 4 or 5 layers of logs with a diameter of up to 70 cm, but also with a layer of 30 mm thick steel plates.

In addition, the outer soil layer is more than 1 meter thick, and even a direct hit from a 75mm mountain artillery or field artillery is difficult to destroy. Continuous hits from 105mm artillery are required to ensure its destruction.

The main fortress on the top of Xiaodong Mountain was even more outrageous. The Japanese used large gasoline barrels to fill with sand and gravel, and surrounded the fortress with three layers inside and three layers outside. Steel plates were added between each layer of oil barrels, and the outermost layer was covered with extra soil.

In order to increase firepower, the Japanese also installed the turrets of light tanks such as T-26 and Vickers 6-ton that had been abandoned by the expeditionary force directly on the top of the fortress, and piled sandbags and logs on the outside.

The combination of these few fortresses made the entire position like a giant armored turtle. It was difficult to shake its foundation, whether it was artillery bombardment or infantry attack.

Even if it is only armed with rapid-fire cannons, heavy machine guns and other weapons, it can still hold its own against ten thousand enemies thanks to its special high-altitude terrain.

In fact, in the Japanese's own tests, these multi-layer oil barrel fortresses can maintain their combat effectiveness even if they are directly hit by 105 howitzers. At the same time, the multi-layer structure can effectively alleviate the shock waves of heavy artillery shells and protect the Japanese inside.

However, Zhang Chi had already made sufficient preparations for this move by the devils.

Weapons such as flamethrowers, blasting tubes, bazookas and tanks equipped with bulldozers are responsible for clearing the periphery and ensuring the attack route. As for the super bunker, Zhang Chi also prepared secret weapons for it.

He commissioned the Xinwangping Iron and Steel Plant, which had just been put into production, to develop a high-strength alloy ground-penetrating sheath designed for blockbuster bombs with the help of Mr. Hua, a great mathematician recruited from White Eagle.

With the cooperation of great mathematicians and existing physics talents, the shape curve of the bomb jacket was accurately calculated, supplemented by electric furnaces imported from White Eagle and alloy steel refined according to the formula, and added with a delayed fuse, the traditional 1000-pound and 2000-pound heavy bombs were transformed by Zhang Chi into simple heavy bunker-buster bombs.

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On December 3, the general offensive began.

The initial battle still started from the air.

The Japanese army begged for help and finally got reinforcements from the navy - more than 20 Type 32 Zero fighters originally stationed in Malaysia.

While the Japanese Navy's pilots were elite, the synthetic pilots produced by the system were no pushovers either. Furthermore, the F4U-4B far surpassed the Zero fighter, which was gradually falling behind in terms of firepower, armor, and engine output.

Through continuous BZ energy tactics, more than 40 F4U-4Bs easily crushed more than 20 Zero fighters, losing only 3 of their own, and all the pilots successfully parachuted.

After clearing the air threat, the next to enter is the bomber force.

To ensure accuracy, the aircraft dispatched this time were the SB2C-4 and A-1H with dive-bombing capabilities of the 919th Close Air Support Regiment. They carried 1000-pound and 2000-pound bombs equipped with sharp earth-penetrating metal caps, hovering in the sky, waiting to mark the Japanese bunkers on the ground.

Soon, the infantry of the Anmin Army began to move on the ridge. With the help of cover, they used mortars to shoot colored smoke bombs near the Japanese's large bunker. Then, with the radio guidance of the ground air force liaison officers, the bombers accurately locked onto the target.

"Boom-boom-boom-" The dive bombers dropped bombs one after another, and a series of heavy bombs followed.

These bunker-buster bombs, modeled after those developed by the Navy for battleship decks, penetrated the soil from the top, quickly penetrated the logs at the speed given by gravity, and then used their sharp metal hard caps to pierce the steel plate on top of the bunker.

When the delay fuse at the tail of the projectile reaches zero, hundreds of kilograms of high-energy explosives inside the projectile are instantly activated. With a loud "boom," a Japanese fortress on Xiaodong Mountain instantly turns into a sea of ​​fire.

The ground shook, dust flew up, and from a distance, the entire mountain range seemed to be trembling.

At that moment, the Japanese's solid fortress was shattered. The originally solid wooden boards, steel plates and earth walls were blown into pieces, and the debris was scattered everywhere.

The huge explosion not only destroyed the fortress itself, but also took the lives of the Japanese inside.

(The 1000-pound armor-piercing rifle of the naval aviation in World War II could penetrate the 100mm horizontal armor of a battleship. Potato here thinks that it can also penetrate the Japanese fortress)