300 155 heavy howitzers, with special armor-piercing shells, passed through a distance of more than ten kilometers between each other, accurately hit the city of Chita, and at the same time tens of thousands of guns of more than 100 mm fired at the same time, 10,000 guns fired in unison, just a base artillery, and the Chita was dusty.

In Chita City, the Russian army has undergone a baptism of artillery, countless artillery fire exploded and roared in the city, but fortunately, all the houses made of stone were strong enough, and there were old-style castles, these soldiers hid in the houses, and only a few unlucky ones were hit by shells, or their houses were destroyed by shells.

The artillery fire in the northwest has always paid attention to the timeliness, and the efficiency of high-explosive armor-piercing shells in the exercise is amazing, but in the face of a defense made entirely of stones like Chita, it is still inadequate, and the effect produced by a round of broken artillery fire is almost minimal.

After a round of artillery preparation, the artillery gradually stopped, and all the officers of the Northwest Army who looked at the effect of the artillery fire through the telescope had a bad look, a base number of artillery, at least hundreds of thousands of shells to shoot down, it stands to reason that Chita should be a ruin, but it looks like most of the houses are intact, and even to some extent, they are a little better than the reinforced concrete ones.

I knew that Chita's defense was all-round, but the defense was so strong that it was beyond everyone's expectations, Yan Xishan had already prepared, but Chita's defense still made him feel a little tricky, cutting off the Siberian Railway, plus all other necessary preparations, he had at least 20 days to capture Chita, and this was only one artillery preparation, under his attack. It should have an effect, but it has an actual effect. But it was not satisfactory to capture such a fortified city. It takes a lot of time.

The initial contact between the northwest and Russia came to an end in this way, and on the front line of Chita, the northwest occupied an absolute advantage, both in terms of firepower and preparation, but the actual effect was minimal, and if we did not think of any other way, maybe we could say. All this preparation is illusory.

Baotou in the northwest is another busy day, a large city with a population of more than 10 million, the new capital of China, Baotou has gradually accepted this status quo, and the whole city, and even the whole country, are moving forward smoothly, located in the north of the World War. It did not affect much of their mentality, at most it was the attention of military enthusiasts.

The Northwest started with wars, and since its rise in 1908, it has experienced many wars. There was not a single defeat, and it was this series of victories that gave them enough confidence. Let them believe that China will not suffer defeat.

In Yang Yuanzhao's office, the battle reports from the front line flew like snowflakes. He had been hesitating whether to use the plane or not. Although it is said that the Northwest has successively used aircraft, and other countries have been the same as in history, while developing airships, they have also discovered the role of aircraft, and some aircraft have begun to enter the military of various countries to conduct reconnaissance, and the military role of aircraft has begun to appear, but these aircraft and the aircraft in the Northwest have at least a gap of 20 years, and in a short period of time, before the material has made great progress, the Northwest is not worried about the other party's aircraft catching up with itself, in this case, even if the aircraft is exposed, the impact on the Northwest is minimal.

But is it okay to plane, according to the front line, the actual situation transmitted back by Yan Xishan, Chita's protective ability is much stronger than they expected, all of them are cities built of stone, operating for hundreds of years, after countless years of cold, the city that is still standing is really strong and abnormal, it seems that Russian cities are like this, Chita is like this, Kyakhta is like this, and even Moscow during World War II, Leningrad is the same, not the Russians are rigorous, and the houses are built with real materials, The key is climate and reality, so that cities that are not built of stone can easily fall due to cold or north winds, and only real stones can be preserved for hundreds of years.

Strategic bombers, at most, carry a little more explosives than ordinary bombers, and the armor-piercing shells that fall from a high altitude are also a little more powerful, but these are enough to bomb a city, during World War II, it is not that there were no large cities that were bombed, a clear example is London and Japan.

Because of the earthquake, most of Japan's cities were mainly brick and wood structures, so they suffered huge losses when they were bombed, but even so, Japan never surrendered during the bombing, and on the eve of the bombing of Tokyo and many industrial bases, Japan made the kamikaze special attack stronger, and there was no other action.

Bombing is unlikely to solve a country, even Japan, which is now running out of ammunition and food. Because of the emergence of Yang Yuanzhao in the northwest, the role of the air force was attached earlier than other countries, and aerial bombs also came out in advance, in order to enhance the power, especially when Yang Yuanzhao put forward some concepts known to later generations, aerial bombs are really changing with each passing day, from the beginning of 25 kilograms, 50 kilograms, to the maximum of 1800 kilograms, especially the latter, which is not very suitable for use on land, that is to deal with warships, especially warships of more than 50,000 tons.

In the general staff, it is not that no staff officers have studied the problem of bombs, but the final problems all point to a result: bombs are extremely lethal to unprotected infantry, but they have little effect on urban attack and defense, especially for prepared urban defense forces.

On the actual combat training ground in the northwest, the amount of damage to the secret defense and the city of aerial bombs is almost negligible, of course, the subject proposed by Yang Yuanzhao, in addition to intensive bombing, another topic, he has been hesitating, but in order to increase the power of the air force, he still put it forward, very simple, that is, incendiary bombs.

The pyrolysis products of oil have relatively large energy, in terms of thermal effect, far higher than explosives, but in terms of explosiveness, it is not so good, with the help of these energy, with some methods to improve his deflagration, you can make weapon-level incendiary bombs.

In the era of knowledge explosion, Yang Yuanzhao still knows that the earliest incendiary bomb used a mixture of gasoline and rubber, and then added other accelerants, and the second generation was thermite, with the help of aluminum and magnesium combustion energy. Increased flammability of gasoline.

Compared to ordinary bombs, incendiary bombs are much more cruel. In particular, second-generation thermite, at adequate doses. Can be crafted into a Cloudburst Bomb.

Although this thing is a conventional weapon, it is not much weaker than a restricted weapon, especially for small spaces and tunnels, it is simply a big killing weapon, and there may not be many direct kills, but the vacuum effect caused by the extraction of air in a considerable range can directly suffocate personnel.

Therefore, the cloud burst bomb is also known as the nuclear weapon among conventional weapons, and it has entered the new century. The development of science and technology is almost ever-changing, among the conventional weapons, all weapons that far exceed the ordinary level of the world have been born, and the cloud burst bomb is one of them.

In this era, there is still no way to solve the problem of cloud burst bombs. The appearance of a large number of airships has made bombing the main force of ground attack in this world. The range of uses of this weapon is extremely widespread.

Now that he has passed the hurdle in his heart, Yang Yuanzhao has let go a lot and directly told the ideas of the two incendiary bombs. Handed over to the Northwest to study, because there is a clear guidance. Crucially, the Northwest controls a rubber and oil producing area. Both of these things were ready-made, and the development of the first generation of incendiary bombs went very smoothly

A month ago, laboratory production was carried out, and now it is being produced in small batches, and 2,000 pieces have been produced so far, all in the 200 kg grade.

According to the calculation of the test, the power of 200 kg of incendiary bombs, under the premise of intensive dropping, is much greater than the power of 200 kg of aerial bombs, especially for reinforced concrete cities, when this number reaches a certain level, only a large amount of air in the area is pumped out, just the suffocation effect of this vacuum effect, it is enough to solve most of the problems.

I had been hesitating before, whether to use this thing or not, but now, according to Yan Xishan's plan, after careful study by the General Staff, there may be more than 50,000, or even 100,000 casualties, Yang Yuanzhao can't sit still.

Whether it was the Qing Dynasty or the war against Russia, even if the war was fought fiercely, the degree of attention to personnel was the first in the world.

Although the production of incendiary bombs was still under secrecy, Yang Yuanzhao looked at the red telephone at hand, answered the phone of the special operations division, and then issued an order.

Three hours later, a regiment of special operations forces, escorting 2,000 bombs of 200 kilograms with huge red exclamation marks painted on them, stepped on the train to buy and sell.

During this day, the northwest fired a total of large and small caliber shells at Chita, more than 2 million rounds, almost an average of 100 shells per gun, saturated and intensive attacks, which had some effect here in Chita, some non-stone construction, or smaller buildings, were devastated, but unfortunately the main body of Chita was still strong, and even the city wall could not see many traces of damage.

In the military headquarters, Yan Xishan frowned, he had long been prepared for the protection of Chita, but the protection of Chita was still beyond his expectations, it was too powerful, not to mention three or five days of artillery preparation, even if it was 10 days and half a month of artillery fire, it might not be able to blast away Chita's solid protection, so how to fight

"Otherwise, let the troops feint and test it tomorrow." A staff officer said tentatively.

Feints, that's right, according to the plan, under the premise that the effect of artillery preparation is not good, you can choose to let the troops feint the same, through close contact, find out the opponent's weakness, consume the opponent's army, unless the artillery is in the field environment, in the urban war, it is red immortal, must be tried with the army.

It's a pity that the opponent's defense line has not yet been breached, and even the loss of personnel is not large, there is enough room for attack, as long as a large number of personnel are dispatched, this casualty figure will rise.

Whether to try it, or to continue the preparation of artillery fire, it will take time to solve. After hesitating for a long time, there was no way, in the end, Yan Xishan still chose to wait, anyway, the logistics materials were enough, and the temporary road was built by various road construction machinery, which was progressing smoothly, and it was less than 40 kilometers away from the direction of Chita, and it could be completed simply in a week at most, and when the time came, logistics would no longer be a problem.

The Northwest is large-scale production, with large machinery and automated production line production, when the number reaches a certain degree of premise, the cost of various weapons is actually very low, in terms of production efficiency, the production efficiency of the Northwest is 5 times that of the United States, is about 7 times that of Germany and the United Kingdom, under the premise of such production efficiency, a lot of additional costs are reduced, weapons at most is about double the cost of raw materials, especially under the premise of super-large-scale procurement, is still slowly decreasing, The limit may be reduced to seven or eight percent, which is already a very low value.

Take the present as an example, it seems that the purchase price of one million shells a day is only equivalent to the purchase price of the Russian army of about 200,000, of which there is a difference of 50,000, the reason is very simple, the Americans' Lend-Lease Act, it seems that the United States has paid a lot, but the United States has paid the government, the arms dealers have to make money, and the arms dealers have added enough profits, maybe one or two times, and the government has increased a little more on this basis to reduce government expenditures

If you want to stop preparing for artillery fire for two days, Yan Xishan sat down with this decision that made him happy, because in two days, the order from the Northwest Staff Headquarters had already called, postponing the attack and waiting for the special operations regiment of the headquarters to come.

Although Yan Xishan didn't know what the special combat group could do when it arrived, he still waited, because the surrounding situation was very good, and the blocking positions of the two armies were quite organized, especially after the road was repaired, all kinds of machinery passed through the railway from Buyingcheng to Kulun

A steady stream of sent to the front line, with high-grade special cement, as well as a variety of hurried concrete, all kinds of solid fortifications began to be built, if the front can withstand artillery below 100 mm, now it can almost resist artillery below 180 mm, the two wings are more solid under the premise, the time to attack Chita is more guaranteed, not to mention 2 days, even if it is three or five days, it is enough to wait.

In the patient waiting, two days passed in a flash, these two days, Yan Xishan patiently waited for the results of the artillery fire, all made of stone Chita, has a strong protective force, although there are not many attacks, but the defense is more than enough, 3 days have passed, I don't know how many shells fell under the walls of Chita, but Chita is still under the protection of the Russians, (to be continued.) )

PS: Sorry for today's chapter!