If the defense areas of each unit are allocated, the next step is to build their own defense areas fortifications.

The regiment directly under the reinforcement of the engineer platoon has a total of 50 people, and each of the four squads is responsible for guiding and building the back slope tunnel of a defensive position.

Wu Chenghu, the platoon leader of the regiment, saw the terrain, and knew what the regiment commander had done before. He was completely prepared for this mountain defense battle. While marveling at the regiment commander's accurate plan, he shouted confidently and directed several infantry company commanders who were one level higher than him to lead the soldiers to dig the tunnel.

Except for the leader of the regiment, he is now an authority, and no one can deny this.

On the edge, that is, the main position on the top of the mountain was also placed before the ancient city by Liu Lang. In the era of cold weapons, soldiers could use the battlements and height of the city wall to kill opponents with bows and arrows as long as they stood on the city wall. However, in the era of hot weapons, putting firepower points on the city wall was only a joke. Enemies with airplanes and cannons could turn the city walls and people into rubble. The huge city wall was simply the best target for aircraft and cannons.

In order to prevent being injured by bricks and stones on the city wall from the explosion, Liu Lang had to push the main defensive position on the top of the mountain for more than 20 meters, and actively exploded several gaps in the city wall for the soldiers on the main position on the top of the mountain to quickly retreat to the tunnel behind the mountain.

However, when Liu Lang came back after inspecting the entire defense line and saw the trenches that had just been dug out on the main position on the top of the mountain, his head was not only shook. Is it basically a straight trench to be killed by the Black Hawk Imperial Army's cannon group?

They still have too little understanding of field fortifications. If they see the trenches of unfamiliar people on Huagao Cliff twenty years later, they will definitely be ashamed.

"Call all the officers and above in the company level to me, and stop the work of the trench excavation first," Liu Lang ordered.

Before the officers gathered, Liu Lang pulled out the stings and drew a simple field fortification configuration diagram on the frozen hard land. Seeing that everyone was here, he said, "Last time I told you the importance of edge lines to reverse slope tunnels. The position on the top of the mountain is the edge lines. In the back mountain of the base, the top area is only a few hundred square meters. It is okay for your trench to be in a shape with an arc, but the mountain here is slightly flat, and the slopes of the top and slopes are extremely slow. If the enemy attacks, you will lack sufficient depth, so we cannot read the text according to the script, but should be adapted to local conditions."

Seeing that several company commanders were still confused, Liu Lang had to continue to explain patiently: "So, our main position on the top of the mountain must also be defended with sufficient depth and arranged in a staircase. For example, the main position of Anwupo, Chi Regiment Deputy, is a battalion and three infantry companies for defense. Then, on the front line, only one company is placed..."

Liu Lang's army slid upwards in the fortification configuration diagram and continued: "Push back thirty feet and use the slope to establish a second layer of defense. Here, another company can not only protect the two wings of the position, but also act as a second line of defense."

"Captain, I know how to protect the two wings of the position, but what is the purpose of leaving the reserve team?" asked Sheng Lei, the company commander of the fifth company who was responsible for the defensive mission of Shanzhayu.

This question is a bit novice, but Liu Lang was not angry. Those who could become the company commanders of the 6 infantry companies were considered the best officers of the independent regiment, but after all, many of them were just raised from a small platoon leader or even a platoon deputy, and they were still new to the position arrangement, otherwise Liu Lang would not have to give lectures on the position temporarily.

"Good question," said Liu Lang. "Staying hard is not a real defense. The real defense should be an offensive in the defense. Leaving this company as a reserve team is to prevent us from launching a counterattack at night to regain the position because the main position is lost. During the day, the Black Hawks have planes in the sky and cannons on the ground, and we can't beat them. In order to reduce casualties, we can retreat to the tunnel behind the mountain and use the positions there to hold them up. At night, the Black Hawks' planes cannot fly, and the artillery must be blind. At this time, the Black Hawks' Empire's people may not be able to be stronger than us."

"In order to prevent the main position from being used by the enemy, remember that all trenches must reach 1.8 feet in depth, and the sandbags on the chest wall must reach 2 feet. Each shooting position facing the enemy is built with a dirt platform that is no more than one-half of a foot high, and do not face our position." Liu Lang continued.

"Captain, why is this? We can't even shoot at the 2-foot-deep trenches! It's not convenient to step on a dirt platform, right?" a company commander asked in surprise.

"I ask you, are you tall or the Black Hawk Empire's tall?" Liu Lang sighed.

"We must be tall! Although the Black Hawk Empire is very solid, its average height is a little shorter than our soldiers. However, we are not even taller than those of Qiu Tongzhou newcomers." Sheng Lei interrupted.

"So! Think about it, our soldiers must stand on that earthen platform before they can shoot outside the trenches. What if the Blackhawk Empire who attacked the trenches wanted to shoot at the second line of defense without earthen platforms for them to settle down? What would you guess they would react?" Liu Lang smiled.

"Haha, then they can only jump out and shoot." Everyone laughed.

The fat leader's move was too ruthless. Even if the first line of defense was lost, the Black Hawk Empire who attacked the trenches could not attack the second line of defense thirty feet away. However, the second line of defense could rely on its height advantage to throw grenades into the trenches. Just thinking about that situation, it would not be too good to be happy.

"Captain, can we still take advantage of this and give up the first line of defense from time to time, lure them in, and then catch a turtle in a jar?" He looked forward and suddenly suggested.

This chapter is not finished yet, please click on the next page to continue reading the exciting content later! "The idea of ​​forward is good, but you must pay attention when you are actually operating. More and more shell guns and flower mechanisms distributed to your company to annihilate the Black Hawk Empires who accidentally entered the trenches. Also, beware of the Black Hawk Empire commander who rushed to jump over the wall to get an indiscriminate shelling. It doesn't matter how the Black Hawk Empires die, but none of my independent regiment officers and soldiers are bleeding in my heart." Liu Lang nodded and reminded with a smile.

"Also, the fortifications of the three infantry platoons must be built into a curved ring and should be expanded longitudinally. Each ring has a traffic trench connected to, and each ring position has a traffic trench connected to the second line of defense. In this way, after the first line of defense is lost, you can quickly retreat and rely on the second line of defense to block the attack. The two wings are ignored and handed over to the second line of defense.

In addition, put several heavy fire points of the company's machine gun platoon in the bunker, and it is forbidden to surround a few sandbags like them. The Blackhawk Imperial Army's cannons are not vegetarian. The above bunker must be covered with steel plates, logs and soil layers, and it is required to at least achieve the strength of the Blackhawk Imperial Army's 155 howitzer. The shooting holes of the bunker must be reinforced with lime and steel plates. At the same time, there is no blind spot in front of the bunker that can be shot by our infantry. The bunker tunnel must be connected to the infantry trenches and can be withdrawn quickly if necessary.

At the same time, individual anti-aircraft artillery holes should be built in the trenches, and 81 caliber mortars should be able to defend against. If I find someone lazy to dig the individual anti-aircraft artillery holes next time, don’t blame me for not giving face. Let you big company commanders be whipped naked in front of the soldiers. Those who are tired and unresolved will be engaged in military law." Liu Lang explained seriously.

The reason why Liu Lang attached so much importance to the anti-aircraft artillery in the field was that according to post-war statistics, 60% of the 3 million soldiers killed in the Kingdom Army were injured and killed under various artillery artillery of the Black Hawk Army, and as many as 70% of the people killed in the Black Hawk Army were killed under the Kingdom Army's artillery shells.

Mountain defense wars like this, howitzers and so on are not scary. When the enemy does not attack, all troops withdraw from their main positions and hide in the back slope tunnel behind the mountain. When the observation post sees the enemy attack, they then enter the position on the top of the mountain. On the contrary, curved guns such as mortars that move and fire quickly can effectively correct the ballistic, the shells can be accurately sent to the trenches without hurting the soldiers they are attacking, so individual anti-aircraft bunkers and anti-aircraft holes are necessary.

"Yes." All the officers stood attentively and agreed in unison.

"Everyone hurry up and go to repair your fortifications. As for who is the front-line unit, who is the second-line unit, and who is the reserve unit, I suggest you can draw lots to solve the problem." Liu Langpai was afraid that his butt would leave directly.

Draw lots? This is OK? The company commanders looked at each other for a few seconds and then suddenly became a scattered beast.
Chapter completed!