What Marshal Pershing never expected was that Su Zhizhen's offensive speed greatly exceeded his estimate. Gaining a foothold in the Port of Portland, the Chinese Empire relied on a huge fleet of seaborne ships to bring a large amount of equipment ashore.

With sufficient equipment to ensure that Su Zhizhen quickly launched an attack to the east, and when the Bostons did not have time to adjust the deployment of troops, the opponent was taken by surprise. The defense line along the river, which was given high hopes by Marshal Pershing, was easily broken by the opponent's three-dimensional offensive. With the help of the Air Assault Army and the Paratrooper Corps, the Snake River defense line was easily broken through without even many casualties among the Chinese army.

Within a month, Su Zhizhen's troops had crossed the Snake River and captured the city of Boisi, with the peak pointing straight to the Missouri River. Another force, sent by Su Zhizhen to cover the flank of the main force, crossed the Snake River and went upriver along the river in the direction of the city of Allians.

Without the blockage of the river, the covering force moved more quickly, and they continued to attack along the north bank of the Truckee River, quickly occupying the line from Berkeley to Ogden, and establishing a fortified position to prevent the main Boston Army from the south from moving north.

Although Su Zhizhen's troops only advanced a thousand kilometers in a month, this had already surprised Marshal Pershing, but this was still within his tolerance, so he didn't care, but in the subsequent attack, Su Zhizhen suddenly changed his offensive style.

Although in the eyes of others, advancing 1,000 kilometers a month is already a fairly fast advance speed, Su Zhizhen is not satisfied, he knows very well that whether it is the battlefield of Port San Diego in the south or the battlefield in the western continent, the NATO army is under tremendous pressure, and every day of persistence will be under tremendous pressure, so he decided to change his tactics and advance at a faster speed.

The two paratrooper corps carried out the airdrop again, this time at a distance, landing along the Missouri River and quickly seizing several railroad bridges. Originally, the Chinese army was still 200 kilometers away, and the Boston army was just busy arranging its positions and had not yet carried out the bombing of the bridge, but the sudden paratrooper air force directly disrupted their plan, and the paratrooper unit with some heavy equipment firmly held the bridge, and no matter how the Boston army counterattacked, it was not able to recapture it or blow it up.

Soon the helicopter gunships came to the rescue, using the continuous fire of rockets to support the defense of the paratroopers, and to the ground of the Bostonians in their chariots. Originally, the Bostonians planned to rely on the big rivers to delay the offensive speed of the northern troops of the Chinese army, but they did not expect that Su Zhizhen continuously used airborne troops to quickly defeat the troops guarding the river, and even the Missouri River could not stop the other party.

The idea of the Bostons was to buy enough time, either for the Southern Army to destroy the Chinese landing force, and then turn around the rear of the Northern Army of the Chinese Army and destroy it, or to give the factories time to produce those high-powered weapons that had been finalized, and to better equip the blocking forces to inflict heavy damage on the Chinese Army.

The loss of the Missouri River forced Field Pershing to change his plans, and at a time when the air assault and paratrooper armies were in full swing, the defense across the river had become a combat method with little advantage, and he had to find another way to delay the other side's footsteps, otherwise the industrial area would not be able to produce enough new weapons until the Chinese army captured the east coast of the Boston Empire.

Su Zhizhen did not give the other party any chance to think, after quickly crossing the Missouri River, he sent a large number of special forces behind enemy lines, and with the help of the Zhigong Court, a Chinese organization throughout the Boston Empire, they cut wires and communication cables, assassinated the commander of the Boston army, blew up ammunition depots and arsenals, and sabotaged railroads and other lines of communication, seriously disrupting the rear order of the Boston army.

Subsequently, after the Navy's electronic countermeasures planes were stationed at land airfields and took turns to take off and turn on the jammers at full power, each plane covered a range of more than 1,000 kilometers, and the Boston Empire's radio stations, both military and civilian, were blocked 24 hours a day, and the entire military system of the Boston Army became blind, and they could not transmit messages to each other at all.

At the most critical moment of the war, Marshal Pershing completely lost information about the north, and he was very anxious about this, but a large number of troops were fighting in the field, and he could not contact them at all. After carefully looking at the map, he felt that Su Zhizhen was going to make a big move, and this move must be aimed at eliminating the living force of the Boston defense force.

The Boston Empire has not many troops in the north, once it is wiped out by the Chinese army, the Boston Empire will never turn over, in order to be safe, Marshal Pershing gritted his teeth and ordered the troops to retreat into the Chicago industrial area to defend, he was going to use the largest industrial area of the Boston Empire to delay the opponent's attack.

Su Zhizhen really wanted to take advantage of the high-speed mobility of the troops to completely wipe out the two million Boston troops in Nebraska, and now the Boston Army's defense forces in the north are only about three million, as long as the main force in Nebraska is eliminated, it will be difficult for the Boston Army to form a threat to the Chinese Army, and then the Chinese Army will be able to drive straight in.

What Su Zhizhen never expected was that before his troops could outflank him, the Boston army retreated. This was an order that Marshal Pershing had conveyed by using an Air Force plane to get in touch with the garrisons in the nearby city.

The two million Boston troops quickly retreated before the battle, ceding large swathes of territory to the Chinese Empire. Field Marshal Pershing regained the strategic initiative with a big step back, placing two million main forces into the city-lined industrial area of Chicago. Fighting here will greatly weaken the advantage of the Chinese army's various heavy equipment, and the Bostonians can take advantage of the familiar terrain to increase their chances of victory.

Su Zhizhen's rapid breakthrough put Marshal Pershing under great pressure, so he had to break the kettle and fight to destroy the entire industrial area and destroy the troops of the Chinese army. To increase his chances of victory, Pershing ordered the troops stationed in Chicago's industrial area to open their arsenals, distribute surplus second-line weapons, arm the civilian population in the vicinity, and make them use guerrilla warfare to delay the attack, and at the same time set up barricades in all the city centers and set up positions on top of various buildings.

It has to be said that in the face of foreign enemies, Bostonians are still very united. What's more, this is a national war related to the fate of the two peoples, and everyone cannot avoid it. A large number of civilians began to take up arms, taking advantage of the familiar terrain and resisting the occupation of the Chinese army in small groups, while also being ready to join the regular army and participate in the regular battle to defend Chicago.

Su Zhizhen began to receive reports of troops being attacked by civilians one after another, and he knew very well that if he did not make a quick decision, the favorable situation in the early stage might be lost, so he asked for reinforcements from home on the one hand, and ordered all troops to eliminate all Bostonians regardless of military and civilian population.

The military leadership of the Chinese Empire does not have so many women's benevolence, in the long river of history, a nation that is too benevolent will be eliminated by history, if the opportunity is given up because of benevolence, then this nation is only qualified to be remembered by future generations, this is the way to survive in the forest of world powers.

The Chinese army has always been unscrupulous in order to win the war, and as soon as Su Zhizhen's order was issued, the Chinese army let it go. In order to maintain the rule and maintain social stability, the people of Boston were forbidden to carry guns in normal times, not to mention that there were no shooting clubs in their country like the Chinese Empire, so those civilians who led the weapons were the first time to touch the guns.

Even when they receive a weapon, civilians are temporarily taught how to use a rifle, but it is one thing to be able to use it, and quite another to be able to use it well. The armed civilians of Boston are still not the opponent of the regular army of the Chinese Empire, not to mention that when Fang Xiaoyu was building the army, the regular army of each division had a small special forces, and the marines were directly established in the situation of quasi-special forces, and they were very familiar with special operations.

The special forces and sniper brigades were quickly drawn from various units by Su Zhizhen, and they went around in small detachments to shoot and kill all non-Chinese people they saw. Special operations have played a very good role in restraining civilian guerrilla warfare, and the regular army has also cooperated with special forces to drive a large number of unarmed civilians into concentration camps, leaving them to starve to death and die of disease, without the support of the people, guerrilla warfare was quickly contained.

The guerrillas operating in the wilderness and in small towns were massively wiped out, and Su Zhizhen began to prepare for an attack on the city. The Chicago Industrial District is the largest industrial area in the Boston Empire, home to half of the country's heavy industry, because it is almost an urban agglomeration.

The density of the city here is quite large, and there are a large number of factories connected between the cities, they rely on the coal and iron resources in the north, as well as the non-ferrous metals and oil in the south, to create a huge industrial cluster here, of course, such a dense industrial arrangement also comes at a price, the Chicago industrial area is the worst air in the country, the sky here is always gray, and the ground is not green to see, except for the factories everywhere desert areas.

Nestled on the Great Northern Plains, Chicago's industrial area is surrounded by wilderness that is far away from the wilderness. Seeing this situation, Su Zhizhen understood the thoughts of the Boston people, who wanted to destroy the industrial area at the cost of countering their own firepower advantage with street fighting, and strive to use crowd tactics to eliminate the Chinese army's troops.