Sister Ghost understands the meaning of this sentence "I really can't stay" very well, because she knows Yang Huairen and Yelu Bawotai.

As long as Yang Huairen stays in Liao for one day, he will inevitably face Yelu Bawotai's invitation to persuade him to stay and become the king of the Southern Courtyard.

If you stand from the perspective of Yelu Bawotai, if a person like Yang Huairen can't be used for himself, then he must not let the tiger return to the mountain and let him return to the Great Song Dynasty.

The war in the west is in full swing, although Yelu Bawotai did not interfere, but it does not mean that he does not care, these days there are constantly arrivals reported to Zhongjing City, he can be said to know the situation in the west well.

At the beginning, the Song Dynasty marched into Western Xia, as Yang Huairen said, in order to recover some of the states and counties ceded to Western Xia by the Great Song Dynasty, and at the same time to recover the hidden losses suffered from Western Xia in recent years.

In the states and counties of those wild lands, Western Xia did not have many heavy troops to guard, and the Song army quickly recaptured these states and counties because of the suddenness of the troops.

But after that, the Song army did not retreat, but continued to march westward, and the intention was soon exposed.

The Western Xia did not mind that the Song army temporarily occupied the places in those states and counties, because they knew that those places were easy to attack and difficult to defend, and the Song army could not stay for a long time.

It's a pity that Liang Yikui miscalculated the form at the beginning, and the Western Xia army suddenly found that the Song army was much more mobile, and there was no heavy grain and grass troops that affected the Song army's operations.

In the past, they cut off the supply of grain and grass to the Song army to force the Song army to retreat, but it did not appear, but because of the light enemy, it led to the loss of more towns.

Only then did Liang Yikui realize the Song army's drunken intentions, but when he felt threatened, the Western Xia court was in chaos again.

Empress Dowager Liang had long been dissatisfied with his brother's long-term control of the government, and because she did not have enough strength to oppose it, she secretly brewed for a long time, and when Liang Yikui was unfavorable in battle, she immediately launched a coup d'état with the Western Xia Emperor and important party ministers.

The result was to take advantage of Liang Yikui's illness to take back the government and military power from him.

However, the Empress Dowager Liang did not have the ability and experience to actually control the government and the army, and after she held power, she removed the main confidant generals of the original Liang Yikui who fought on the front line, and appointed a group of her cronies, but these people did not have the experience and strength to lead the troops to fight, and the war took a turn, and the Western Xia was defeated in the stalemate.

The Song army won several big victories in succession, and the Western Xia army was defeated, and took advantage of this golden opportunity to fight all the way to the city of Xingqing Mansion, forcing the Empress Dowager Liang and the emperor and a group of courtiers to abandon the city and flee to the north of Helan Mountain.

If it is placed in the previous history, the Western Xia Emperor once again wanted the Song Dynasty to bow down to his vassals, and the Song army could withdraw its troops.

But Zhang Dian was ruthless enough, and he didn't give the Western Xia Emperor a chance to surrender and become a vassal, and continued to chase westward, and the richest land west of the river in Western Xia was all under the iron hooves of the Song army.

Since then, although the Western Xia has not completely perished, its national strength has been reduced by most and it can no longer become the greatest threat to the northwest of the Great Song Dynasty.

Therefore, in the First World War, the Great Song Dynasty opened up a trade channel with the Western Regions, and all the excellent grasslands north of the Hetao were also taken over as territory by the Great Song Dynasty.

The outcome of the war was a bit beyond Yelu Bawotai's expectations, and he couldn't understand how the Song army, which had always been weak, could become so brave in just a few years.

In more details, he didn't think about how the Song army entered the Western Xia to fight, in addition to the logistics support for transporting grain and grass in the early stage, the two armies of the Song and Xia Dynasty entered the stalemate period and the Song army was invincible all the way in the two months.

Even if the Xia army was defeated and fled, it would not leave food for the Song army, according to normal war habits, the grain and grass could not be taken away, and even if it was burned, it would definitely not be left for the enemy army.

It wasn't until later that the top-secret news brought back by the Khitan spies in Western Xia really frightened Yelu Bawotai.

His two questions, which he had been unable to figure out, were also answered.

The Song army was brave, and in addition to being inspired by the great victory in the Battle of Huanzhou, they also had great confidence in their own combat skills.

Even the Western Xia Army didn't expect to understand why the Song army went up to the general and down to the pawn, and why it was like a group of people, all of them fought bravely, which was completely different from the Song army in the previous impression.

Yelu Bawotai got the news that the Song army started a new training method last year, although I don't know what the training method is, but the source of this training method, the two names that came up after tracing it, Long Wuwei and Hu Benwei.

Yelu Bawotai was no stranger to the names of these two military guards, because when he investigated Yang Huairen before, he knew that Yang Huairen now had a title in the army, that is, General Long Wuwei.

Although many people in the Song Dynasty thought that this was just one of Yang Huairen's many false titles, it was impossible for Yang Huairen himself to know how to train soldiers.

But Yelu Bawotai doesn't think so, everything in this world is for a reason, why is it the new training method started by Long Wuwei and Hu Benwei, and not others?

Judging from his contact with Yang Huairen these days and his understanding of Yang Huairen, Yang Huairen's ability is definitely not limited to cooking skills and that little cleverness.

In addition, Yang Huairen has always been a maverick in his words and actions, which made Yelu Bawotai suspicious of him.

The second thing is not difficult to investigate, the reason why the Song army dared to go deep into Western Xia to fight against the Xia army without logistical food and grass support was that each sergeant brought his own food.

At first, Yelu Bawotai did not believe that the army should not carry too much or too much food in mobile combat, otherwise it would affect the combat efficiency, and it is normal to carry half a month's worth of food in general, and any more will be completely cumbersome.

But it is a bit unreasonable that the Song army was able to carry the military rations used by himself for two months, and it did not affect the combat capability.

The reason he got was that the Song army had developed a new type of military ration, which was only one-tenth the weight of ordinary grain, but could meet the supply of three times the normal grain.

The Song army chose to start a decisive battle with the Western Xia in April, and because this was the stage where the grass grew wildly on the grassland, there was no shortage of forage at all, so without the previous hidden dangers and restrictions, it won the victory in the normal war overnight.

Looking back at the origin of the Song Army's new military rations, I got a name, or Yang Huairen.

This made Yelu Bawotai not calm, Yang Huairen's ability and wisdom were far stronger than he had imagined before, if he was sent back to the Great Song Dynasty so easily, it would be tantamount to returning to the mountain.