Major Bao did take some effort to arrange the defense of the concession. In view of the large territory of the concession and the insufficient guard forces in the concession, Major Ball first decided to shrink the defense line, abandoned the concession of the United States, Japan and Germany, and instead concentrated his troops to guard the British and French concessions, which could reduce more than one-third of the defense zone. Fortunately, the U.S., Germany and Japan concessions were not built, and the consuls of the three countries did not have too much trouble, and immediately organized the residents in their own concessions to evacuate. This greatly alleviated the difficulty of insufficient guard forces in the concession.

There is no city wall in the concession, and it is too late to build defensive fortifications now. It can only be divided into two defensive cores by the British Concession Defensive Area and the French Concession Defensive Area. At several important intersections, some simple fortifications are made of stones, sand bags, wooden boxes and other objects, and then use the building buildings outside the concession to resist the attack of the crossing army. The buildings in the concession are all brick and stone structures, mostly two- and three-story buildings, and have a certain resistance to medium-sized artillery. However, there are no artillery in the concession, only four Maxim machine guns.

Colonel Ball also ordered that the residents within the area about 200 meters after the defense line were basically empty. First, the vacant houses could be used for fortifications; second, it was also to reduce casualties of ordinary people.

Therefore, at eight o'clock in the morning, a fortification was built on the periphery of the concession, but even Colonel Ball himself was unsure of whether he could withstand the enemy's attack. Although he had boasted in front of the consuls of various countries that Haikou could hold on for three days.

In fact, while waiting for the attack time, Qin Yuhai was not idle. On the one hand, he sent drones over the concession to check the traffic road conditions of the concession and understand the defensive arrangements of the concession. On the other hand, he also recruited company commanders to discuss tactics for attacking the concession.

This time the attack on the concession was during the day, so the advantage of the crossing army could not be exerted, which invisibly greatly weakened the advantage of the crossing army, and strategic weapons such as helicopters could not be used easily.

However, the layout of the Tianjin Concession is closer to the urban layout of later generations, so this battle is a typical urban warfare. Such a battle mode is exactly what the soldiers are most good at. Because in the old time and space, the probability of large-scale ground wars was extremely low. Modern wars between countries were mostly high-tech, high-tech, and informatization was a model of aerospace integration.

Ground wars, which are ground wars involving infantry, are mostly carried out in the form of counter-terrorism and anti-riotism, and are mostly in cities or mountainous areas. Therefore, urban warfare training accounts for a large proportion in modern infantry training, and most of the individual weapons of infantry are adapted to this type of war. Such as rifles without stakes, gun-mounted grenade launchers, night vision equipment, mortars and rocket launchers, etc.

Generally speaking, urban combat is more disadvantageous to the enemy army, mainly because the terrain in the city is complex, and the enemy army is often unfamiliar with the terrain. The main army can occupy the commanding heights and transportation areas of the city before the war, and use its advantage of familiarity with the terrain to constantly change and attack enemy troops that are stronger than themselves. Even if it is as strong as the US and Russian troops, it is difficult to occupy much easier in such urban warfare.

But in this era, the crossing army has absolute technical advantages. There are drone reconnaissance in the air. The disadvantages of unfamiliar with terrain can basically be compensated, but they have absolute advantages in weapons. What is more important is the tactics of urban warfare, which is not comparable to those of the army of this era.

The defensive arrangement of the concession, the army through drones had already understood clearly. Therefore, the main attack of commander Qin Yuhai was the Baotu Tu Road (now Yingkou Road), which was also the dividing line between the British Concession and the French Concession. Therefore, this road was chosen to use this road as the main attack direction, that is, to cut the concession into two pieces, and then break them one by one.

However, the concession naturally knew the importance of the Baotu Tudao, so he also made heavy defense here. The guards alone reached more than 300 soldiers, accounting for more than one-third of the entire concession army. There were also two Maxim machine guns. They also built more than one meter high and nearly two meters wide fortifications with sand bags at the intersection. Many soldiers were also arranged in the buildings on both sides of the street. Even if the defense line was broken, the enemy would still be hit hard on both sides when advancing along the Baoshi Tudao. Ball was quite confident in this line of defense. If the enemy did not have large-caliber artillery, it would have to pay a price to break through this line of defense.

Of course, Qin Yuhai did not easily order the soldiers to attack the defense line of the concession, because such city attacks and defense cities cannot be attacked rashly, and if they are not done well, they will be turned into meat grinders. The opponent's defense line must be disrupted first. At this time, the two mortar platoons who crossed the army would have a moment to show their power.

The two mortar platoons were divided into two batches, and bombarded the concession line in turn. The fortifications made of sand bags had good defense against solitary shells, but there was no way to deal with shells, because they were large curve ballistic cannons like mortars.

The shells kept falling into the positions in the concession and exploded, blowing the unprepared defenders into pieces, killing countless casualties. Although the soldiers ambushed in the houses on both sides fired back, the positions that crossed the army were beyond the range of the rifle, not even mortars, so they were almost no threat to the crossed the army.

Moreover, the positions of these soldiers who were ambushed in the house were exposed as soon as the fire opened, so the snipers who passed through the army immediately launched a sniper. There were nine snipers in the crossing army. Although at a distance of about 800 meters, no matter how good the sniper was, it was impossible to hit every shot. It could still be achieved if it reached a hit rate of 6 or 7. Therefore, many soldiers who shot in the house were shot and killed by headshots.

Of course, snipers are not just sniping the soldiers in the house. Now the defense line of Baoshitu Road has been disrupted, and the soldiers in the concession have been in chaos, almost all of them have become targets that can be rented.

At this time, Ball and Fukushima were commanding and watching the battle in a building about 100 meters away from the defense line. Seeing the defense line they carefully constructed was easily disrupted by the enemy, Ball was annoyed, but he had no choice but to admit that the opponent had so many artillery? Fortunately, the defense line was blown up, but the damage to the house was not great, which made Ball a little relieved. Now he could only place his hopes on the opponent's official attack, so the ambush in the houses on both sides of the street could play a role. Therefore, Ball immediately ordered the soldiers who retreated from the defense line to retreat into the house and wait for the opponent to attack.

Fukushima Anmasa has been watching the battle quietly, and is also evaluating the enemy's combat effectiveness in his heart. Judging from the current situation, although the opponent neatly broke the defense line guarding Baoshitudao, from a tactical perspective, it can only be considered as a standard and a central basis, which is nothing more than the one that uses cannons first and then sends infantry to rush.

But at this moment, a fire suddenly flew out from the opponent's position and suddenly hit a house on the roadside. This is a standard European-style house, which covers an area of ​​not large, estimated to be less than 200 square meters, but it is two stories high, with tall floor-to-ceiling glass on the upper and lower floors, and more than ten soldiers are ambushed in this building.

With a loud "boom", fireworks surged out in large quantities. The building was blown out with a large gap several meters wide. Then two flames flew past, both hitting the building. This time, Fukushima An saw clearly. It turned out that the flame was from a cylindrical object with a slender vertebrae. The tail was sprayed out from something similar to an arrow tail feather-shaped part, and it looked a bit like a magnifying thing like a firework, a sky-surgent cannon and other things.

However, An Masashi Fukushima knew that this was not fireworks. With two loud explosions, nearly half of the building was destroyed. Two soldiers lying in the building were knocked through the floor-to-ceiling glass on the second floor by the impact of the explosion, flew more than ten meters away, and fell into the middle of the road.

When Ball saw this, he widened his eyes and murmured: "What kind of weapon is this?"

Fukushima Akamasara raised his head and looked into the enemy's position from a distance, as if he wanted to see which artillery shell that was fired at the tail just now was fired from. At this time, the two sides were nearly a thousand meters apart, so they could not see clearly at all.

The crossing army is of course the PF98 10mm rocket launcher. Although it is a multi-purpose rocket, it is easy to penetrate brick walls. The 10mm warhead can be considered a large caliber in artillery, and the power of the explosion is invisible. It can be the most powerful among individual weapons. In this crossing army, there are six PF98 10mm rocket launchers, each company and two, which are effective weapons to deal with light armor, infantry fighting vehicles, field fortifications, warehouses and eliminate live power. To a certain extent, they can make up for the weakness of heavy firepower.

Seeing that a building was destroyed, Qin Yuhai was very satisfied and immediately ordered the bazookaman to clear the houses of the soldiers who were ambushing one by one. Although the command before the war gave the troops the order to avoid damaging the buildings in the concession as much as possible, there was such a good thing when fighting, not to mention that the enemy had already arranged a defense line, only the Japanese who were mindful and had to play "pig tumbling and jade breaking" and "Ban Zai charge" desperately. Of course, Qin Yuhai would not use the soldiers' lives to fill the position, and first use the bazooka to remove all the nearby buildings.

Not long after, the crossing army destroyed five houses in a row. The soldiers who were ambushed in the house were either killed or injured. Several soldiers were burned by the fires burned in the house. People fled to the streets shouted and ran around, and the situation was terrible. When the soldiers who were ambushing in other houses saw it, they dared to continue to stay in the house and wait for death, and rushed out. In a blink of an eye, the defense line collapsed.

When Qin Yuhai saw this, he ordered the troops to attack the concession.
Chapter completed!