Everything can't be pondered in detail, and the more you ponder, the more things you do, Li Fengyi feels that this sentence is really true.

Li Fengyi, who was lying on the bed in an office of the Yuncheng Library, held up a map of Yuncheng City and looked at it non-stop.

When Li Qiang retreated, the southernmost part of the defense line was Sanmenxia City, but when he arrived on the bank of the Yellow River, he found that Sanmenxia City was on the south bank of the Yellow River, and the Sanmenxia Dam had been blown up not only 30 meters wide, but more than 100 meters wide.

At the beginning of the retreat, in addition to receiving the materials transferred nearby and some of the troops that were scattered, they spent a peaceful time without panic, and they had no opinion on the reorganization, so that the troops in Li Fengyi's hands reached 32,000 people, because the transportation remained unchanged, there were not many materials, but they could be used for a while.

At that time, the situation of the Special Committee was very good, and there were plans to prepare to repair the Sanmenxia Hydropower Station and provide power supply to the Special Committee, and the troops sent to the local area for this purpose were also prepared to build an improvised bridge on it, and the width of more than 30 meters became more than 100 meters, purely because a bomber on a mission did not finish dropping bombs, and decided not to bring back the ammunition, and by the way, it was widened a little.

It's just that because there is no bombing plan on the platoon, it has no impact on the army, isn't it just to prepare more materials and build a bridge of more than 100 meters, the Sanmenxia base will definitely not be able to run, so it has not been reported to Li Fengyi's level, the plan is not as fast as the change, if every small change is reported one by one, the leaders don't have to do anything else, so Li Fengyi can understand the thoughts of the staff below.

Li Qiang didn't notice that the Sanmenxia Dam had not been repaired, because there was no zombie group in this direction--- here was the Golden Triangle of the Yellow River at all, not only the river, but also the mountains in the territory, and the Zhongtiao Mountains running through it, and it was not a key logistics base, so there was no value of attention at all, when the Sanmenxia base was arranged after the retreat, the communication was not smooth, and there was no report that it had not been repaired, of course, there was no way to talk about Li Fengyi, and all kinds of situations in military operations would appear, It is impossible for Li Fengyi to smoothly reorganize the troops left behind.

So after Li Fengyi completed the reorganization of the army, he settled in the Canal City Library, instead of the government department, for the simple reason that the library is not only a good and spacious building, but also has a large number of paper materials for reference.

In the current situation, there is no remote guidance target, it is impossible to block the zombie group by relying on mountains, rivers, city walls or other buildings, and the zombie group can directly pile up any obstacle that human beings can prepare by relying on a large number of zombies, that is, the flowing water can form a large enough rapids to be like a water flow conveyor belt, and the zombie group that rushes forward is continuously washed away.

Therefore, in order to build a safe surface base, the first and only reliable option is to rely on rivers, and where there are no rivers, you need to artificially build something like a moat.

The advantage of the Yuncheng area is that it is surrounded by the Yellow River on three sides, and not only that, there are as many as 25 large rivers in the entire Yuncheng area, which is enough to form a layer of defense system.

After the reorganization of the troops, and the officers at all levels were mastered, Li Fengyi made a public appearance, and after a little greeting, he directly mentioned the current precarious form, of course, he did not say anything about the rebellion at the Xishan headquarters base, but called on everyone to immediately build a safe Yuncheng forward base, so as to hold on, and prepare the material conditions for the people brought back by Li Qiang.

Some officers were a little suspicious, but the situation was stronger than people, and if they couldn't get the forward base, everyone would be finished, so they quickly entered the stage of brainstorming and discussion.

Li Fengyi was accompanied by architectural experts and geographical experts, and soon came up with a new plan, and the rivers in the area basically flow south into the Yellow River, and the big rivers are the Fen River and the Qin River, and what they want to do is to open up the 23 kilometers between Erhezhuang Village and Banzhuang Village, 40 kilometers from Xiajiao Village to Xiajiaotou, and 10 kilometers from Hedong Village to Dongtou, totaling 73 kilometers.

"The mountains are high and the valleys are deep, the rain is pouring, this river, under normal circumstances, under normal thinking, does not have the conditions for cultivation," Li Fengyi finally concluded, "But we have no choice, Commander-in-Chief Li will send troops here at any time, we are not 32,000 people fighting, but may reach hundreds of thousands of people working together, we have to make our nest safe, otherwise let the zombie group cover the triangle area on three sides, sooner or later it will be a death, even if a few people may escape, it will not help, we must live and die together." ”

"During the construction work, the mountain is dangerous and the road is steep, and flash floods break out frequently, and we will have great casualties," Li Fengyi looked at the officers above the regimental level who participated in the meeting one by one, and everyone looked at him quietly, "I will work on the front line with the soldiers." ”

The first to be sent was the communications troops, and Li Fengyi selected absolutely loyal and reliable party members one by one, and they wanted to lead the way for the troops that Li Qiang had recruited, because Li Fengyi had departed from the original route and came around due north, and fortunately there was the Fenhe Bridge repaired by the original left-behind troops, otherwise they would not even be able to enter the Yuncheng area.

32,000 people Li Fengyi carried out the division of labor according to the principle of mixing sand, 20,000 people were sent from Xiajiao Village to Xiajiaotou, 10,000 people were sent from Hedong Village to Dongtou, and the remaining 2,000 people were engaged in logistics work, because once these two places are opened, the Yuncheng area has become a completely closed area, and the 23 kilometers between Erhezhuang Village and Banzhuang Village are not urgently needed, but if they can be opened, they will have a closed area that has doubled, and resources will also increase exponentially. At present, only a small number of surveyors have been sent to this area, and the construction will gradually begin when Li Qiang's integrated troops return to ensure the progress of the above two sections.

Such a large-scale civil project requires a large number of ** and steel hammers.

At the same time as the personnel were pulled out one after another, the 2000 logistics personnel who stayed behind began to sweep the entire area like locusts, although there were iron mines in the Yuncheng area, but the logistics personnel really did not have that time, they directly searched for various metal objects of the people, took out the end of the steel smelting, and transported it directly to the coal mine in the Yuncheng area, and began to build steel hammers.

Don't think about it, it needs a modern chemical base, in other respects, this area is really rich in products, and the raw materials are also rich enough.

**Three elements: saltpeter, sulfur and charcoal, there are sulfur mines in the Yuncheng area itself, **There is no shortage of local charcoal, charcoal is a thing, you can get it with wood, and even better, there are fertilizer factories in the Yuncheng area, a large number of chemical fertilizers in stock, in the eyes of Li Fengyi's chemical experts, it is almost equivalent to high performance**.

The process of making ** is very simple in the eyes of professionals, there are enough manpower, there is no shortage of raw materials, it doesn't matter if the production equipment is not modern enough, there are enough manpower, and even there are mechanical guys who have transformed a few very simple steam engines as a power source, in the opinion of experts, the most difficult to solve may be the first moisture-proof problem, full of rain, wet everywhere, damp, very annoying, and finally had to use large packaging, gunpowder around the coating of charcoal with excellent moisture absorption performance to solve, just like that, The inventory time will not last long, and it will still return.

In less than a week, a steady stream of all kinds of gunpowder began to be transported to the construction site, and in the pouring rain, the sound of explosions resounded one after another throughout the wilderness, and animals of all sizes had to be frightened and had to run around in the rain, which made the food problem of the construction troops improve to a certain extent.

!