It's just that what Okamura Ninji didn't expect was that his every move on the front line had long been secretly infiltrated by the anti-United Nations special reconnaissance unit behind the Japanese defense line, and he was given a clear understanding. At the same time, the order he gave through secret telegram was also intercepted by the listening post set up by the Anti-Japanese Federation on the front line.

As early as the strategic goal of seizing the Jizhong Plain was formulated, the Anti-Japanese Federation set up radio listening stations in the direction of Zhangjiakou and Chengde. Intercept radio signals between Japan's North China Front and the Kwantung Army, China's dispatch forces, and the mainland. All the radio signals of the Japanese army were within the interception range.

In order to decipher these Japanese telegrams, the Anti-Japanese Union mobilized more than a dozen of the best radio deciphering experts and a batch of the best equipment. Using the Japanese radio code cracked last year as the basis for decipherment, it specially deciphered the intercepted Japanese radio signals, including the radio signals of the Japanese army's horizontal and vertical communication.

Although the North China Front had only changed the code two days before, this information was still quickly deciphered within 14 hours. After receiving reports from various troops on the front line, Yang Zhen knew that the best time to launch an attack had come. Since Okamura Ninji is so generous, he doesn't have to hesitate anymore.

With Yang Zhen's order, the mountains shook in an instant on the hundreds of kilometers of battle from Tianjin in the east to Beiping in the west. One hundred and twenty Blenheim bombers, thirty-six B-25 bombers and eighteen Manchester bombers were the first wave of bombers for the fire strike force, under the cover of two fighter squadrons. Air strikes were carried out on the front-line positions of the Japanese army, as well as on the artillery and communications positions in depth.

In fact, compared with the carpet bombing of the B-25 and Manchester bombers, the napalm carried by the Blenheim bombers was the most headache for the Japanese army. The ground attack tactics of the anti-coalition air force are all specially trained. It was not a cover-up bombing, but a low-altitude bomb drop from west to east along the lines of the communication trenches and trenches of the Japanese front.

Although this kind of bombing method is relatively dangerous, the accuracy is not comparable to that of all-round coverage bombing. As long as a napalm fell into the trench, the Japanese soldiers in the trench of more than 100 meters were almost completely boneless. Even if you hide in the bomb hole, you can't escape the blow of the fire.

The simple way to prevent such blows is to cover the trenches and communication trenches with sand and logs. That is, to put a cover on the trenches and communication trenches. But in this way, how can the defending troops still fire? In the mountains, this method is okay.

After all, tanks can't go up the mountain, and it's okay to do so in the mountains. But fighting in the plains, this defensive tactic is basically to create a passage for other tanks. Therefore, after obtaining a light twin-engine bomber like Blenheim, the Anti-Japanese Union specially formulated the tactic of quickly pulling up and detaching along the direction of the Japanese trenches and communication trenches, and adopting a dive-dropping bomb bombing and then quickly pulling up and detaching, which almost made the roots of the teeth of the Japanese hate, but they were never able to find a countermeasure.

And in this battle, the Anti-United Nations invested not only tactical aircraft, but also the latest special operations aircraft. On the North China Front, the Anti-Union deployed sixteen specially modified 14-mm machine guns with a specially modified twin mounted machine gun on each side of the fuselage, as well as a 12-mm machine gun, and adjusted the pitch angles of all weapons.

As for the nose of the plane, the original self-defense firepower that formed a 180-degree firing range was completely modified to the nose of the plane. And the armor on the fuselage was strengthened, as well as the original upper turret of the fuselage was removed, and the magazine was removed and replaced with a closed version of the armor and firepower of the B-25 bomber.

These B-25 bombers, which were changed to special ground suppression, specially cooperated with the bomber group in the mission of the anti-coalition air force to suppress the Japanese anti-aircraft fire on the front line, so as to cover the movement of the bomber group. The B-25 bomber has a sturdy body and can withstand relatively large overloads, making it suitable as a tactical aircraft after modification.

For this kind of aircraft, Yang Zhen gave a name to the gunboat machine. But whether this kind of aircraft of the Americans decades later is this kind of use, Yang Zhen did not make it clear. Yang Zhen believes that he should not be too prescriptive, and most of the tactical use still needs to be explored by himself. If you are too broad, it will limit their thinking.

The growth of a new branch of the armed forces from scratch requires a little bit of accumulation and exploration. Having a good guide can certainly get twice the result with half the effort. But invisibly, it also limits their own creativity and the breadth of their thinking. Yang Zhen has always encouraged all branches of the military to explore on his own.

These modified B-25 bombers formed a huge power as soon as they were put into battle. Move with a group of bombers and wander over the battlefield. As soon as the Japanese ground anti-aircraft fire was fired, a plane flew straight over and suppressed the Japanese anti-aircraft fire point with the fire from the fuselage flanks.

The Japanese ground air defense forces were shut up and did not dare to open fire less than half an hour after the air raid began. It can only be left to the anti-coalition air forces to do whatever they want. The interceptor fighters put in by the Japanese army were entangled in the fighter units of the Anti-United Nations, and they were unable to carry out effective interception at all.

After the Anti-Japanese Union bombed Japan more and more intensively, the main force of the Japanese army's army and aviation shrank more and more in the direction of the mainland, Korea and the Kwantung Army. In addition, the local aircraft factories have seriously reduced production under the indiscriminate bombardment of the Anti-United Nations, and the quantity of complete aircraft and parts replenishment is far from catching up with consumption.

The total number of combat aircraft that the North China Front was able to concentrate this time was just over 100. Even the Chinese dispatch army allocated all the planes that could be lifted into the air to the North China Front. Even if the Battle of Changde started, only one squadron of Type 99 light bombers was transferred back, and none of the main fighters were called back, but the role it could play was a drop in the bucket.

Prior to this battle, the Anti-Japanese Union concentrated its air force to bomb various airfields in the depths of North China, which in disguised form weakened its own weak forces. The Japanese army lacked radar and night combat capabilities, and had almost no means to deal with the night sneak attack tactics adopted by the Counter Coalition. The lack of aviation troops, in the face of the anti-United Nations southward movement, can only barely maintain.

In desperation, the Japanese had no choice but to release fewer troops in the front-line positions. But this has created a considerable opportunity for the breakthrough of the Anti-United Nations. Especially in the breakthrough battle, setting up an artillery blockade area between the first and second line positions of the Japanese army has become a common example of the Anti-Japanese Union.

In particular, the tactics of using 120-mm mortars, accurate shelling within a kilometer, and blocking communication trenches gave the Japanese army even more headaches. This is also the reason why Okamura Ninji wants to take the initiative, it is so fucking uncomfortable to be beaten so passively.

It's just that what Okamura Ninji didn't expect was that he had just concentrated a few brigades of troops on his side, and wanted to try to come by surprise and make a tactical surprise attack to disrupt the enemy's forward deployment. But he didn't expect the Anti-United Nations to make the first move, and a group of anti-United Nations light bombers flew over.

Taking advantage of the first touch of the morning after the night fell, a bomb blew up several of the infantry brigades he had gathered at six o'clock in the morning. Okamura Ninji, who originally wanted to change the Japanese army's inherent habit of attacking, failed directly before the counterattack started. And the air raid of the Anti-United Nations was not only the assembly place where he counterattacked, but also the entire front from Beiping to Tianjin.

When the bomber group of the Anti-United Nations dropped the bomb and slapped the butt and left. Before the Japanese troops on the ground could catch their breath, the sound of artillery rang out all over the front. The difference between this shelling and the usual artillery battle was that almost all light and heavy artillery was used in the face-to-face anti-coalition.

From 75-mm mountain artillery, 82-mm and 120-mm mortars, 105-mm howitzers, and 150-mm howitzers, they carried out intensive artillery strikes on all the forward positions of the Japanese army. The 107 and 122 rocket artillery carried out covering fire on the Japanese positions in depth.

Although the Japanese artillery had ready-to-establish positions to rely on, it was equipped with a long-range Type 92 105-mm cannon. Trying to fight an artillery duel with the artillery of the Anti-Union to provide cover for the forward troops. But they did not expect that the Anti-Japanese Union specially sent bombers to use specially improved napalm bombs to deal with the Japanese artillery fortification group.

These napalm not only contain coagulant and gasoline, but also thermite. These new napalms, which can ignite a high temperature of 3,500 degrees at the moment of burning, were specially developed by the Anti-Japanese Federation to deal with the Japanese artillery bunkers. After all, after the end of the battle last year, they built so many fortifications in Pingbei and Pingxi and even in eastern Hebei.

The delay in achieving the final goal in the Northeast Battlefield last year was also related to the fact that the Anti-Japanese Union lacked too many means to deal with the Japanese army's firepower points with strong fortifications. After several studies, on the basis of napalm, such a new type of incendiary bomb with good power and function was finally developed.

As long as this new type of incendiary bomb explodes within a distance of several tens of meters around the Japanese artillery fortifications, the high temperature of more than 3,000 degrees will be generated in an instant, and the strongest fortifications built by the Japanese army will be directly burned. Even if it can't be completely burned, the artillery inside will melt into a pile of scrap metal.

As early as in the previous artillery battle, the Anti-Japanese Union had locked on most of the artillery positions deployed by the Japanese army in depth. As soon as the Japanese artillery fire returned fire today, the air force immediately arrived. With this extremely powerful bomb, the Japanese heavy artillery unit was silenced in a short time.

Either they were brought to work with artillery and the people inside were roasted into a pile of charcoal under the high temperature. Either they watched the troops in front of them struggle under the enemy's shells, and the infantry in front of them shouted hoarsely, and did not dare to fire a single shell that fired back. The Japanese artillery lost the courage to fight back, and the artillery of the Anti-Union concentrated on dealing with the Japanese infantry without being distracted.

Under the cover of intensive artillery fire, the mine-sweeping engineers and mine-sweeping tanks of the Anti-Japanese Union carried out large-scale explosive demining of various minefields in the Japanese front according to their different terrains. When the artillery fire turned into depth, shouts of killing sounded everywhere on the 100-kilometer front from Miyun to Fengrun.

When the artillery fire of the Anti-United Nations began to shift, I listened to the shouts of killing that sounded from the anti-United Nations position on the opposite side. The Japanese positions in all directions of the front line will immediately be assigned to the second or even third line of defense and quickly enter the first-line combat positions. It's just that as soon as the Japanese army entered the position, the intensive artillery fire of the Anti-Japanese Union suddenly stopped.

The bomber group of the Anti-United Nations flew in the sky again, facing the various Japanese defense support points on the front line, and another meal of napalm and high-explosive bombs. Before the Japanese troops, who had been heavily killed or wounded, could recover their strength, the dense artillery fire rang out again. This time, all the anti-coalition artillery fire, except for the rocket shells that formed the fire blockade area, smashed into the three lines of defense of the Japanese army almost simultaneously.

Moreover, in the final stage of the shelling, the artillery of the Anti-Union used white phosphorus shells for the first time among the shells fired. gave the three lines of defense at the forefront of the Japanese army a complete baptism. After several thousand rounds of white phosphorus bombs were fired, the effective resistance of the Japanese army's front-line positions basically collapsed completely.