The Song army suddenly launched frequent surprise attacks on more than ten places in Jiangbei from Ezhou in the west to Yangzhou in the east. After crossing the river, they often did not target the heavily fortified state capital, but the garrison water villages and outposts scattered along the river as their main targets, and at the same time, they would also raid the tuntian posts in the hinterland, dig water canals, blow up dikes, flood fields, rob and kill ploughing cattle, destroy Oulu Province, loot property, burn military supplies, and for a time everywhere was in ruins.

"What will the Southern Army do?" Ba'er Shu sketched the location of the attack on the map, and more than 30 places in the defense line under his jurisdiction were attacked, but he couldn't see any rules and no focus, which made it difficult for him to judge the purpose of the Song army's battle, and he couldn't help but be annoyed.

"According to the news from Jiangnan, the tabloids in Lin'an said that it was because there were often water bandits crossing the river to loot villages and towns along the river, and some of the captured people confessed that they were soldiers of our army, so they launched a retaliatory action!" Jin Rongyan, the governor of Manho Prefecture, said that he was in charge of civil and opportune affairs, that is, he was also in charge of intelligence.

"Revenge?! From the point of view of the situation, this is just an excuse, and its purpose should be to find the weak point of the Jiangbei defense line and prepare for the attack. Boyan shook his head and said.

"Right Minister, the young general thinks it's inappropriate, if it's to find a weak point, why should he destroy Tuntian and attack Oulu Mansion, obviously they are bandits!" Bald objected.

"Fools, they are trying to conceal their true purpose, cause us to miscalculate, find out where their real attack is, and use this to disperse our forces!" Ba'er Shu glared at his deputy.

"This is by no means the case, I think it is because the Yugoslav army has discovered our intention to move south, so it will attack everywhere to disrupt our deployment. The destruction of the tuntian was to cause panic among the military and civilians, and the attack on Oulu Province was to destroy our supplies so that we could not go south! After being reprimanded, Bald was not convinced and replied.

"Don't make any noise!" Boyan was already very annoyed by the matter of the Goryeo naval army, and when he heard the two arguing, he felt even more upset, and shouted sharply, "Where did the southern army launch the most attacks!" ”

"It should be in Huaixi!" Jin Rong flipped through the war reports sent from various places, "The Southern Army once used the water army to conquer Zhajiang Village, went north along the Weixu River, tried to go to Chaohu Lake through Wuwei County, and was finally blocked in Dongguan Village and forced to retreat to the Yangtze River. But when they withdrew, they bombarded Wuwei County with meteor cannons, blew up the county office, burned the warehouse, and left no stored materials. At the same time, the aqueduct in the river was blown up, making thousands of acres of nearby fields unirrigated! ”

"There was also an army that entered Caizi Lake from Fengsha Town, the governor of Chi, and attacked the Qianhu Tunshu by the lake. Suddenly attacked, our army did not have time to react, dozens of people below the thousand households of Hesar were killed, nearly 100 were wounded, the southern army plundered the gold and silver of Oulu Province, and burned all the clothes and armor and equipment that could not be taken away! ”

"The activities of the southern army in Jiangzhou and Hukou were the most rampant, they destroyed seven or eight military villages and outposts along the river, and invaded the hinterland several times, attacked the Oulu governor's mansion in the capital of Tuoliedu, and burned all the baggage stored there to prepare for the southward journey, and suffered extremely heavy casualties......"

"What about the rafts and boats hidden in the thunder pool?" Without waiting for him to finish speaking, Boyan asked anxiously.

"The Leichi Water Village was breached, and the giant rafts built were all ...... They were all destroyed, and even the stored wood was set on fire! Jin Rong looked at Boyan timidly and said.

"It's over, the thief must have noticed something, so he took the lead!" Boyan sighed, and seemed to have suddenly aged a lot. He had already discovered that the target of the Song army's attack was actually very clear, that is, the various Oulu provinces.

At the beginning, the Mongols lived a nomadic life, and when they went on expeditions, they did not regard them as noble and low, but took their wives and children with them to take care of luggage, clothes, money, and so on. In every war, when adult men go to the front, they leave women, old and young to guard the tents and baggage, and their families and child servants are engaged in production in the rear or with the army, and they are engaged in cattle and other industries to supply the front. This kind of tent left in the rear is called Oulu. Later, the tents of family members who stayed in the rear during the war and lived together were called Oulu, and special officials were set up to manage them, and such officials were also called Oulu.

Thus, the term Oulu refers to both military families and officials set up by the government to manage the military families who remain behind the front lines. After Mongolia issued the Han army in the former Jin Dynasty area, it set up a separate household registration for the Han military households that remained in their original hometowns, and set up institutions and officials to manage them, which were also called Oulu. When Genghis Khan went west, he took the rear of the Chinese army as the Great Olu, and appointed his younger brother Temuge Chijin to stay behind.

The Oulu of the Mongolian Army and the Tanma Red Army is under the jurisdiction of the military system, that is, the Oulu Governor's Office is set up under the 10,000 households where they are located, and the Oulu Officers are set up in 1,000 households, which are part of the establishment of the Mongolian Army and the Tanma Red Army, and are responsible for managing the affairs of the military households in 10,000 households or 1,000 households. In contrast, the Han army of Oulu was governed by the local administrative system, that is, there were other full-time officials in the Han army, or they were managed by the civil officials of each road, and the governors and deputy officials of the roads, prefectures, prefectures, and counties in the north all had the title of concurrently with the military Oulu. Its main responsibilities are:

The departure of military service, the issuance and replacement of military personnel, etc., must go through Oulu. When soldiers are set out for service, they usually have to be escorted. If there are more than 50 soldiers, they should be escorted by a chief officer; those with less than fifty shall be escorted by competent servants; Requisition and take out the conscription's enclosed money (coiled). Collected with the help of Oulu and brought back to the troop station; Handling civil disputes involving military households. Disputes between military and civilian households over marriage, land, money, and debts shall be handled by the magistrate and the Oulu official through consultation. In the event of such incidents between military households, the Oulu officer will deal with them.

After the Mongols destroyed the Jin, after the Tanmachi soldiers had a fixed station, their families successively moved from the grassland pastoral areas to the agricultural areas of the Central Plains, gradually dissociated from the Mongolian headquarters, and gradually formed the Oulu system with Han characteristics in the north of the Jianghuai River. Military households are under the direct management of the Oulu government, and all the issuance of Ding Zhuang, the replacement of the old and weak, the supply of military supplies, the support of the old and the young of the conscripted soldiers, and the handling of civil disputes between military households are all directly managed by the Oulu government, and are not subject to the jurisdiction of the local road prefecture and county.

At present, the Song army is targeting the Oulu provinces, which is intended to destroy their logistics system, destroy the stored materials, and weaken the staying power and motivation for the war. Therefore, once the war reaches a stalemate, even if it is not long, it will have to withdraw troops......

Compared with the angry Boyan, Zhao Yu is very calm. After several days of successive military meetings, the specific objectives and operational guidelines of the attack tactics were agreed. The generals then set up their own plans and organized their subordinate units to carry out operations.

The first phase is now in full swing, and the main task of this phase is to pull out the water walls and outposts set up by the enemy along the river, knock out their eyes first, and clear the way for infiltration operations. At the same time, strikes were delivered to the enemy's cantonment troops. Because of the vast area of Tuntian, it is often carried out with 100 households as the basic unit, and each Tuntian is far apart. Moreover, most of the military households in Tuntian are old, weak, women and children, and their combat effectiveness is low, so they are the targets of small troops.

Moreover, these military households in Tuntian are also tasked with providing baggage and manufacturing weapons, and striking at them is tantamount to weakening their logistical support capabilities. If you are fighting in the front, but your home has been copied, the house has been ordered, and your wife and children have been killed, can you not be in a hurry to get angry? Therefore, it was also a heavy blow to the morale of the enemy army.

After uprooting the enemy's outlying strongholds, Zhao immediately moved on to the second phase of the operation. At this time, all units infiltrated deep into the enemy's territory to find out the enemy's troop movements and material hoarding, so as to determine the enemy's operational direction and objectives. At this stage, Zhao Yu authorized the military supervisor in person to have the right of expediency, after discovering valuable targets, without asking for approval, he could launch an attack at his own discretion, and he could coordinate friendly forces across jurisdictions to fight together, all for the purpose of striking the enemy and disrupting his battle plan.

At the same time, Zhao Hao stressed that friendly troops entering their own areas due to combat should do their best to cooperate and assist, actively treat injuries and illnesses, not shirk the need for replenishment of materials, actively coordinate when they need to cooperate with operations, and send troops to rescue in time when they are in distress. Those who do not save themselves in the face of death, or who are slow, have a negative attitude, and are indifferent because of the struggle for merit, will not be severely punished.

Through these two phases of operations, all units have achieved good results. In total, more than 100 enemy strongholds were uprooted, and more than 3,000 enemies were annihilated; More than 200 miles of irrigation ditches and more than 100 sluices and dams were destroyed. It destroyed more than 30 tuntian sites with more than 100 households, burned more than 100,000 stones of grain and thousands of houses, killed and wounded hundreds of enemy troops with less than 100 households, and killed more than 200 cattle.

In addition, several enemy material hoarding sites were attacked, and the results were quite successful. It is said that the enemy army is also careless, they think that it is difficult for the Song army to pass through the Yangtze River unconsciously, and it is also for the convenience of transportation, the material transit point is set up on the wharf by the river. The Song army commando team used small warships carrying rocket launchers to infiltrate through tributaries and rivers to carry out long-distance bombardment, and quickly evacuated after success, achieving good results.

Of course, for the enemy's important targets, the various units did not hesitate to send large armies to carry out strong attacks. In the first battle of Leichi, Jiangzhou mobilized a division of infantry to fight in coordination with the Yangtze River Water Army, and under the guidance of the commando, forcibly broke through the enemy blockade on the river bank and entered Leichi, destroyed most of the boats and rafts hidden in the lake, and the two sides fought fiercely, and then calmly withdrew to the south bank under the cover of artillery fire.

Zhao Yu looked at the battle reports coming from everywhere, and generally achieved his goal. Although there were losses on their side this time, the battle took place in enemy-occupied areas and had little impact on Jiangnan. Through a series of cross-river raids and reconnaissance operations, it not only disrupted the enemy's line of sight, caused certain material losses to it, and made it difficult to judge the purpose of the Song army, but more importantly, Zhao Yu was able to read the enemy's battle plan this time. This surprised him a lot, if the enemy army really launched a simultaneous crossing of the river in the upper, middle, and lower reaches, it really caught him a little off guard, and it was also beyond his expectations.

First of all, Zhao Yu did not expect that the enemy army would have the courage to attack on all fronts when the naval army was at a disadvantage, and at the same time launch a river-crossing operation; In addition, the vast area of this operation made it difficult for their own armies to help each other, so they could only fight on their own; In addition, the three enemy forces are at each other's horns, and as long as there is a breakthrough, they can make a detour to the east and west, so that the entire defense line will be shaken. Fortunately, now that the situation has been identified, targeted and early measures can be taken to close the loopholes.

What made Zhao Yu feel gratified was that this attempt at a new form of combat gave him more means. In this operation, small units are mostly used to carry out targeted strikes against specific targets through infiltration and surprise attacks, which is somewhat similar to special operations in modern warfare. But he thought it was just similar, because in this era, the basis of special operations did not exist, and there was no such unit in the formation of troops. If there is, only the action team of the Secretariat can barely be counted.

In the past life, there are many statements about the special forces in ancient China on the Internet, and even summarized the rankings of the six major special forces in ancient China, the twelve special forces, and so on. But after Zhao Yu came to this era, he found that most of the facts were the same as the "Top Ten Famous Knives" rumored on the Internet, which were mostly unreliable. For example, the so-called Iron Eagle Guards of the Qin State, the Modao Battalion of the Tang Dynasty, and the Eighteen Cavalry of Yanyun are too large and far from historical records. There are also Beifu soldiers, Wei Wushu, etc., although they are indeed elite, but they all perform conventional military tasks and cannot be regarded as special forces.

Moreover, the ancient and modern arms are single, and the combat effectiveness of individual soldiers of each branch of the armed forces is basically the same, and large-scale frontal operations are often carried out, and special forces are often small-scale, and there is no room for display. It is not easy to assassinate the enemy general, considering that the camp formed by more than 10,000 troops is more than ten miles away, and it is not easy to find out the residence of the main general from it. And the main general is often in the center, how to hide from the layers of sentry posts, the guards around him are not dead, and they are often elite troops, how can you let the general dominate like a no-man's land.

Even if it is said that the guards of the emperors of the previous dynasties and the pro-army of the generals, the orphans of Yulin in the Han Dynasty, the trapped camp of Gao Shun, the back army of the Yuejia army, and the three major battalions of the Ming Dynasty, these troops may carry out special tasks such as going deep behind enemy lines, searching for important people of the enemy army who have escaped, and killing enemy generals when participating in the war, and can send a small elite force to destroy and behead like modern warfare.

However, in ancient times, without the assistance of aerospace reconnaissance, it was very difficult to discover important targets in the rear. Even if it is discovered, weapons that can be used to carry out sabotage are needed, and in the absence of advanced means of communication and accurate long-range weapons, the success rate of such an operation is very low, and it is far from being able to carry out a siege through highly mobile troops.

The operation carried out by Zhao Hao seemed to be successful, but the small troops he sent were all carefully selected elites from various departments, and they cooperated with the scouts of each department to conduct close-range reconnaissance and surprise attacks behind enemy lines. When encountering an important target, it is impossible to complete the operation independently, and it still needs the assistance of the main force to complete it. However, Zhao Yu felt that this could also be regarded as a useful attempt for special operations......