After the retreat of Marshal Pershing, the Chinese army quickly received intelligence from satellite photographs, which were reconnoitred by air force reconnaissance aircraft. After intelligence verification, Pershing did withdraw all troops. After receiving this information, the air force dispatched all the bombers, they sprinkled the disinfectant again in the cities, and then the double defense soldiers also entered the cities in fully enclosed rubber suits, and began to carefully disinfect the work, and a month later, the Chinese army completely occupied the Chicago industrial area, and even so, there were some plague patients in the army.

The vaccine against plague is not a panacea, and sometimes even if the vaccine is injected, it will still cause the disease, but it can push back the incubation period by two to three days. The appearance of plague patients did not make the military doctors panic in the slightest, because they had already prepared for it. With the help of large quantities of streptomycin and sulfonamides from China, the plague was quickly suppressed. In particular, streptomycin, a special drug for plague, is simply a medicine to cure the disease, after several intramuscular injections, the patient will completely reduce the fever, and the conditioning will be able to live again for more than ten days.

Seeing that Su Zhizhen's troops were not affected by the plague at all, even if it was an enemy country, Marshal Pershing had to admire the strength of the Chinese Empire's medical system, an industry that was neglected by the Boston Empire, at the most critical moment, actually broke out with such great power, so that millions of Chinese troops could live in the plague area safely and unharmed.

Faced with this situation, Marshal Pershing had no choice but to order his troops to rebuild fortifications near Lake Michigan in case of Su Zhizhen's army. After a large number of troops were dispatched from the port of San Diego in China, the supply of materials began to be difficult, especially Su Zhizhen fought farther and farther in the north, which greatly lengthened the logistics supply line.

At the same time, in the Boston Empire, which was thousands of miles away, a large-scale landing battle was carried out from two places, with more than five million people, and the scale of supplies required for such a big war, even if the Chinese Empire had a strong transport fleet, could not supply two battlefields at the same time, so Su Zhizhen had to figure out his own way.

Seeing that it was becoming increasingly difficult to replenish, Su Zhizhen accelerated his plan, which was not enough to restore production in more than a dozen cities, but now it has occupied the entire Chicago industrial area, and this recovery plan can be expanded tenfold, and it must be accelerated. Fang Ruijun was very supportive of Su Zhizhen's plan, and he provided a lot of convenient conditions for this, and in the loot, Fang Xiaoyu waved his pen and divided the Chicago Industrial District into many small pieces, and listed them for auction.

With the guarantee of the country's credibility and the bloody struggle of millions of soldiers in front, these businessmen are still very jealous. The so-called wealth is in danger, and Fang Ruijun auctioned these properties at half of the original price at a low price, and also agreed to buy weapons and ammunition nearby for the Chinese army fighting in the Boston Empire, which made the merchants of the whole country crazy.

At the auction, bidding was extremely enthusiastic, and many properties in Chicago's industrial area were sold at high prices. Fang Ruijun's trick was quite useful, if he distributed these properties to the merchants and let them immediately resume production to serve the front line, maybe the speed would be much slower, but after the auction sale, the effect would be completely different.

These properties became legitimate for sale by the state, and merchants naturally flocked to them, and after a successful purchase, recovering costs became a priority. Who would be willing to abandon an industry bought at a high price before recovering its costs, especially when the demand for this product exceeds supply. Merchants rushed to the Boston Empire in the hope of resuming production as soon as possible, so that they could trade with the army and make enough profit to cover the purchase price.

The merchants spontaneously recruited a large number of skilled workers and engineers from the country, and then purchased a lot of spare parts and equipment for the modified equipment, and then they took the sea ship as fast as they could, and marched towards the Boston Empire.

The merchants moved quickly, and in just over a month, they arrived in the Chicago Industrial Area. Seeing their brand-new factories and perfect equipment, the excited businessmen and engineers and workers devoted themselves to the transformation of the equipment day and night, after all, Boston's various weapons production standards and styles were quite different from those of the Chinese Empire, and they had to modify them all.

In order to put production into operation as soon as possible, the merchants offered high rewards to the engineers and workers, which made everyone's work very high, and the industrial zone, which would have taken at least a month to be put into operation, began production one after another ten days later.

The weapons and ammunition that had just been produced were quickly delivered to the hands of the Chinese army on the front line, looking at these brand-new weapons, the workmanship was almost the same as in China, Su Zhizhen greatly praised those businessmen, and at the same time he also said that in the war, the army's weapons consumption was quite large, and the weapons produced were as many as they wanted, all in cash. At the same time, Su Zhizhen also said that the army not only needs weapons and ammunition, but also military uniforms and bedding, food and medicine, and as long as they can produce them, the army will purchase them on a merit-based basis.

The fastest group of merchants made money, which greatly stimulated the enthusiasm of the merchants. Thanks to their efforts, the entire heavy industrial area of Chicago was once again in operation, and after a slight modification of these machines, they began to produce all kinds of ammunition and weapons used by the Chinese, and several small oil fields north of Boston and their affiliated refineries were also running at full capacity, providing fuel for the Chinese army.

Food factories, clothing factories, garment factories, and pharmaceutical companies that provided products to the army were set up one after another, and various industries that provided them with raw materials were also stimulated, not to mention that so many people were working in this industrial base, and a huge amount of food was needed just to eat and drink.

Fang Ruijun's auction was a stroke of genius, which not only increased the enthusiasm of the merchants, made the Chicago industrial area resume production ahead of schedule, but also inadvertently contributed to the Great Migration to the New World, and all this not only did not require the government to spend a penny, but also made a lot of money at the auction, for this situation, the members of Congress praised Fang Ruijun.

The logistics in the north were greatly eased, and after two months, the logistics transportation of the whole north of Boston had been reduced to five percent of the previous one, not because the Chinese empire was short of transportation capacity, but because most of the supplies needed by the army could be replenished in situ.