Although Laura, Hei Dahan and Gou Saiyu are not outsiders, and it is okay to eat at the base of the Independent Regiment, but from the military management regulations re-promulgated after the New Year of the Independent Regiment, they must not stay at the base for a long time. This applies to all non-independent members.

Because there are too many secrets involved in the base of the Independent Regiment, under the suggestion of the security department led by Xiao Fenghua, several giants of the Independent Regiment met to study and set this policy.

Not to mention that the scale is getting bigger and bigger, and it has been upgraded from a research group to a scientific research institute and an important material reserve warehouse, just talking about the current armed configuration of the base, it cannot be allowed to be snooped on by outsiders.

Don't look at the appearance of the base, it is still a fortress surrounded by mountains and mainly protected by natural mountains, but both the defense capability and its internal structure are very different from two years ago.

With the continuous improvement of the base fortress of the independent regiment in the past two years, a real fortress has been formed that connects the five peaks into one. And it is the fortress that guards the only passage between Sichuan and Shaanxi provinces.

Although the hills that make up the main body of the fortress are still lush and green, they are actually densely packed with various medium, long, and short-range firepower points. The passages that had been exposed for quick defense had been filled in, leaving only sections of trenches hidden in the woods that could be returned to the tunnels at any time. It's not that there is no passage but all from the outside to the inside, the belly of the five mountains has basically been hollowed out, and the hidden passages are vertical and horizontal, and the soldiers do not need to pass through the mountains at all, they can go directly to the defensive positions through the passages in the belly of the mountains.

Artillery is the most important defensive weapon of the fortress base of the independent regiment, and although the small howitzer of 105 caliber, which can shoot more than 10 kilometers, is not yet equipped, the launch ports have been reserved on various peaks. The 75 mountain guns with a slightly closer range of 7,000 meters, the infantry guns with a range of 3,000 meters, and the 82-caliber mortars with a range of 2,000 meters are also an important part of the long-range and near-range three-dimensional artillery fire of the independent regimental base.

At the same time, the fortress of the independent regiment, which occupies a radius of 6 kilometers, has three anti-aircraft artillery positions, and each of the already built positions will have 8 75-mm anti-aircraft guns, 12 20-mm twin-mounted machine guns, and 24 MG42 anti-aircraft machine guns. The sky is not necessarily all airplanes.

At least not over the fortress base of the Separate Regiment.

At the same time, these anti-aircraft guns and machine guns, which can fire at a range of up to 3,000 meters and occupy high places and are hidden by tunnels, can also provide tactical support for ground operations, and they are also an important part of the ground close-range fire network of the independent regimental fortress.

Designed to fire at angles of up to 160 degrees, the various firing ports make these anti-aircraft guns a nightmare for enemy attacks on the ground.

All the perimeter of the firing hatch, which has been planned and the basic construction has been completed, is covered with reinforced concrete in all directions, and a thick layer of soil is covered on top of it, and shrubs are planted on it for the necessary camouflage.

For this reason, in addition to the amount of cement produced by the construction branch of the Chinese Commercial Group in the early stage, the rest is basically invested in the use of the independent regiment base, and there is not much export at all.

In addition to these anti-aircraft and ground-definite guns of various calibers with a range of up to 1,000 meters, the most important component of the fire network at a distance of 1,000 meters is naturally the MG42 machine gun of the "Hitler's Chainsaw", which has the highest rate of fire in the independent regiment.

At the base of the independent regiment, which has stored nearly five million rounds of ammunition, the only drawback of excessive consumption of the MG42 machine gun will no longer exist, and nearly 80 heavy machine gun fire points on the five peaks will be equipped with 10,000 rounds of ammunition each for a long time.

Any invading enemy who knew that they had risked their lives to rush through the artillery barrier of the fortress base of the Independent Regiment, regardless of the direction of the attack, would have to face a torrent of metal capable of spewing 800 rounds per second, not including the rifles in the hands of the defending soldiers, would have a broken heart.

It is still peacetime, and the small ordnance factory of the Independent Regiment has always been mainly engaged in the production of semi-automatic rifles and pistols developed and designed by the talented people who came back from Liu Tuanzuo, and at the same time, it has also to provide comprehensive support for the "Storm" rocket launcher that is in full swing and the "individual rocket", the most mysterious weapon of the Independent Regiment.

Of course, the people who can participate in these two projects have been strictly vetted by the security department of the independent regiment, and it is very important that the last three generations have lived in Sichuan, and no one in the family has ever left Sichuan. Except for Captain Skinnay, who was recruited from the United States from the United States as the chief designer of the individual bazooka, including Dr. Grunov, the rest of the people involved in these two projects are authentic Chinese.

Liu Lang knew that once the secrets of these two weapons were leaked to the Japanese, the blow to China would be devastating. If the Japanese, who have mastered the secret of rocket launching, build a large number of rocket launchers and rocket launchers, perhaps not only China will be unlucky, but the world situation may change accordingly. At least, the tanks of the red polar bear are no longer an irresistible torrent of steel for Japan in the face of individual bazookas.

If the Nazi Third Reich and Japan were caught between the front and back, the Red Polar Bear, the most important fulcrum of the Allies in Eastern Europe, did not survive, resulting in the defeat of the Allies, and finally the world was ruled by a group of militarist Nazis.

Liu Lang, a sinner in the world, is not afraid, what he is afraid of is becoming a sinner of the Chinese nation, if that is the case, he would rather carry Hanyang and the little devil to work. Before a full-scale war, these two weapons will never be displayed in front of the world.

At the beginning of the Great War, Japan, which was fully engaged in the war, was like a wild horse that began to run wildly, and it was too late to devote itself to the research of rockets. They don't have Liu Tuanzuo, a little butterfly from the future, standing on the shoulders of giants and putting forward key opinions on rocket research.

Mustache and Beard's research on rockets began more than a decade ago, but it was not until 1941 that the red polar bears actually put the "Katyusha" into actual combat and beat the caught caught off guard of the Third Reich, and it took 20 years from their research intentions to the successful design of rockets. The mustache was slower, and he didn't launch his own rockets until he was about to be defeated, but as soon as he launched, the V1 rocket, which was big and could fly hundreds of kilometers, was very good in that era, but unfortunately it was no longer able to play any role in the outcome of the war.

That is, by the middle of 1935, after three years of development, the construction of the fortress base of the independent regiment had basically been completed, but the planned equipment was not yet in place.

However, this is not a big problem, as early as two years ago, after Liu Lang and Shanxi old men had a secret talk, Liu Lang had embedded the Taiyuan Arsenal as an important part of his huge plan.

Originally, I thought that I would cooperate with the old man in Shanxi to complete the weapon configuration of the fortress base, but now that Huamei Company has intervened, it will naturally be more convenient.

After the relocation of the Taiyuan Arsenal after the upgrading of machine tools and technology, the fortress base of the independent regiment will become the first customers. Liu Lang had already placed an order with Huamei Company at the banquet to welcome the little foreign girl.

16 105 caliber howitzers, 30 75 mountain guns and 30 100 mm caliber cannons, the performance is better than the Japanese 70 caliber infantry guns 30, 30 twin 20 mm machine guns, 150 60 mm mortars, 60 82 mm mortars, each gun is purchased in advance of 500 rounds, and three spare barrels.

Of course, these cannons did not say that they all had to be produced by the Huamei Arsenal, which had been renamed. As the world's factory, the Americans maintained good trade relations with other countries during this period, and in order to cross the two old European powers, Britain and France, the Americans did not support the mustache behind. Liu Lang believes that there is no difficulty at all in purchasing a batch of Krupp LEFH18 105-mm howitzers from the Third Reich, which is wholly owned by the Americans.

Although the 105 howitzer was designed 20 years ago, it is still one of the best artillery pieces of World War II, and the Third Reich produced 20,000 guns in the whole of World War II.

However, the 1800-kilogram gun body can allow fifteen soldiers of a squad to push it onto the main gun tunnel, and can also fire various types of shells, the most awesome thing is that it can not only have a range of up to 12,000 meters, but also can be adjusted to hit armored targets of the direct aiming gun, which is definitely the best choice for the main gun of the base fortress of the independent regiment.

The 75 caliber gun is naturally Bofors, and the Bofors mountain gun, which is easy to move and flexible, and has a range of up to 9,000 meters, is definitely one of the best in medium-range artillery.

With medium and long-range firepower, coupled with the exaggerated MG42 machine gun fire points and the auxiliary defense of anti-aircraft gun positions, in the face of any incoming enemy, the fortress base of the Independent Regiment can instantly turn into a hedgehog full of spikes.

The attack distance of this "hedgehog" is as high as 12 kilometers, completely enveloping the Sichuan-Shaanxi Highway, which is only 2 kilometers away from the base, within the range of its firepower.

Including the Huamei Arsenal, which is 2 kilometers away from the base of the Independent Regiment, and the research institute and warehouse located in the mountains behind the base of the Independent Regiment, anyone who wants to enter and exit is within the range of the death fire that has passed through the base of the Independent Regiment.

As long as the base maintains 3,000 troops, Liu Lang is confident that he can resist the attack of more than 50,000 people of a group army with the long, medium and near firepower of the base.

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