By the time Du Ji received the decree, the vanguard of the coalition had already established a bridgehead in Gyeonggi Province and confronted the Imperial Army in front of the Eternal Hung Pass.

High? Guan, located in the east of the Guanzhong Plain, stands in three key points, the terrain is very dangerous, there are Qinling Mountains in the south, there is the forbidden valley in the southeast, and there are 12 cities in the south of the valley; There are Wei and Luo Erchuan in the north, and the Yellow River hugs down, and the west is near Huayue.

The surrounding mountains are even mountains, peaks are even peaks, the valleys are deep and the precipices are exclusive, the mountains are high and the roads are narrow, and there is a narrow sheep intestine path in the middle, and only one car and one horse can be allowed to go back and forth.

From the beginning of the landing of the coalition forces, Gyeonggi Province began to build defense fortifications on a large scale. Closure is even more important.

For three years, the construction of fortifications did not stop, and in both size and strength, far surpassed the Maginot Line in the modern world.

It is a matter of life and death for the country, and the Tang Empire has poured a lot of effort into this line of defense, because it is an imperial system, and this kind of thing is beyond reproach. Dozens of families who tried to cut corners in vain were wiped out.

The fortifications were taken care of in sections, and the defense of the fortifications was linked not only to the fate of the defenders, but also to their families. Of course, the Tang Emperor was not unreasonable, and Zhulian only targeted the officers and soldiers who abandoned their positions.

The survival of the position is not only related to the lives of the whole family, but the officers and men of the defenders can be said to have exhausted all means and gone all out. The fortifications were constantly strengthened, the defensive forces were also constantly increasing, and the major families not only came out of the elite, but also strengthened ties with each other, agreeing to help each other.

Although Datang is strictly guarded, Tong? Some of the information on the border line still fell into the hands of the coalition intelligence agencies.

The Tang Empire in Tong? 500,000 troops were stationed at Guan. It also took advantage of the geographical advantage, and the great victory of Tori Province some time ago also made the defenders full of confidence. provinces and cities. The potential of the major families that erupted made the officers and soldiers of the coalition feel frightened.

Tong at this time? Guan, not only the most elite soldiers are stationed, but also a large number of cultivators, and the success of Dugi Province is a very successful precedent. The participation of cultivators in the war can indeed play a decisive role.

The coalition forces are coming. It's not a tour, even though it's a hard bone, you still have to bite it. After the vanguard has gained a foothold. A tentative offensive began.

Relying on advanced equipment, the artillery of the coalition army bombarded the defense line of the Tang Empire unscrupulously.

Relying on strong fortifications and favorable terrain, the artillery fire of the coalition forces. For the defenders. It's just an itch in the boots.

Not to be outdone, Datang's artillery launched a counterattack against the allied artillery. The artillery positions on the anti-slope, the solid bunkers, and the condescending geographical advantages not only offset the range advantage of the coalition forces, but also greatly improved the survival probability of the Datang artillery.

Less than half an hour after the artillery battle began, the artillery of the coalition forces within the range of the Datang artillery suffered a devastating blow.

With the defeat of Togi Province, he was at the bottom. The coalition forces have long been mentally prepared for such losses. The shelling continues. It's just that the scale is smaller, but the frequency and range of attacks have increased greatly.

The artillery of the coalition forces no longer ran to the front to be bombed, and only relied on the advantage of range to provide artillery support to the attacking troops on the front line from afar. It's just that in the face of the fortifications that have been carefully built for three years, it is really difficult to make contributions to the artillery fire of the coalition forces.

Although the artillery of the defenders could not hit the artillery of the coalition forces, the coalition soldiers who bombarded the front line were accurate one by one.

In the continuous attack, the casualty ratio of the Datang defenders and the coalition forces reached an unprecedented ratio of one to five, and it was the first of the Tang Dynasty and the fifth of the coalition forces. This is also because of the newly formed garrison of Datang, most of which are recruits who have never been on the battlefield.

To be able to use new recruits to make such a record, the defenders were very excited. The guards of each defense area have adopted the method of rotational warfare, allowing the recruits to take turns to go to the front line to see blood, temper the troops, and improve the combat effectiveness of the troops under them.

The fiasco in Togi Province still brought some experience and lessons to the coalition forces. The victory of the Dugi army was all because of the powerful "beast cultivation", which laid the foundation before the war, and without the help of the "beast cultivation", the Dugi army would not be able to compete with the coalition army at all.

The coalition forces are not stupid, and the successful experience of Dugi Province must be used for reference, but it's a pity, Tong? There are too many Tang cultivators in the guards, and the cultivators of the Eight Kingdoms who were originally used to start a war with the Tang Cultivation Realm are in Tong? Guan has suffered a lot.

The emperor of the Tang Empire tied the fate of the major families to the defense line, and if he kept it, everyone was happy, and if he couldn't keep it, he would raid the family and exterminate the clan, which was no joke.

As long as there are families involved, they will send the masters of the family to the front line. The cultivators of the Eight Kingdoms who came in a hurry were not surprised not to suffer in front of the many cultivators who were waiting for their work.

Although the cultivators of the Eight Kingdoms have strong personal strength, the heroes can't stand the large number of people, and they don't have the strength to crush, so they can only return in a huff in the face of the desperate Tang Dynasty cultivators.

Although the daily attacks were heavy casualties, the coalition forces were tired of it, and their main purpose was to divert the attention of the Tang defenders.

Togi Province can't afford to provoke for the time being, but the river? However, the northern route was unrestricted, and the coalition forces expanded the occupied area north of the river in a controlled manner, looking for places to build airfields in order to gain air supremacy.

The decaying Tang Empire did not have an air force, and since the beginning of the war, the imperial army had no air supremacy, and lacked experience in dealing with air strikes, so it would be defeated so badly and so quickly.

Previously, on a whim, Yi Fei scraped all the fuel of the coalition army in order to have sufficient fuel for the newly formed armored army, and directly deprived the coalition army of air supremacy.

In order to destroy the Dugi army, which suddenly increased in combat power, the arrogant coalition army transferred the defenders from all over the country to take revenge on the Dugi Province. Unexpectedly, they suffered an unprecedented defeat, with more than 1.2 million of the 1.6 million army being taken prisoner, and it was only the 300,000 soldiers of Togi Province who defeated them.

The Tang Dynasty armed forces in the area occupied by the coalition forces obtained a large amount of materials and ammunition from Dugi Province, and after the coalition forces emptied the garrison troops, they launched a huge counterattack and recovered a large area of the country.

Under such circumstances, in the occupied area of the coalition forces in the Tang Dynasty, only part of the cities along the Yellow River remained, and the only surviving airfield was the Blue Bird Airport near the sea.

Because this was the initial landing site of the coalition forces and the final retreat of the coalition forces, it was not captured by the counterattack of the Tang Army.

Even so, an airplane without fuel can only be a decoration. After the reinforcements of the coalition army came, these planes came to life, but the fighters of this era have a combat radius of less than 200 kilometers, and it is impossible to support Tong? off the front line.

In order to break through Tong as soon as possible? Off, coalition forces in the river? In the northern province, close to the front line, seize the time to build an airfield and at the same time step up the delivery of fighters. At present, there are only more than 20 planes in the entire territory of Datang, which are used to assist the attack, which is far from enough. (To be continued......)