The two scouts captured by Su Hong must have not expected Guangxin to send troops south, so they only cared about the situation in the south and did not pay attention to the situation in Guangxin in the north.

When the Baili Yan (Wei Xian) army camped, these two guys found that they had entered the warning range of the Baili Yan army, and it was too late to run. Su Hong was ordered to be on guard, and found the two guys lurking in the grass.

According to normal logical thinking, it is impossible for these two people to ambush here a few days in advance, otherwise they will be at least three days away from the main force of the rebels. It could only be that the rebels suddenly moved south in the second half of last night, and after camping this afternoon, the scouts sent out ambushed the official road and killed the Dingyang messenger, or the two were preparing to go to the vicinity of Dingyang to monitor.

Judging from this, the rebels were at least fifteen miles away from the northwest of the Baili Yan Army, or even farther away, and fifteen miles was already the limit distance for the scouts to react quickly on foot, and it was not suitable for the transmission of intelligence in the state of camping and marching when placed twenty to thirty miles away.

Generally speaking, the placement distance of scouts is directly related to physical strength, foot strength, and animal power, and the farther the distance, the higher the physical requirements, and the slower the transmission speed.

Scout reconnaissance for three to five miles is suitable for situations where the enemy is close to the enemy and it is known that the enemy may set up an ambush. Five to ten miles is used to report on the development of the war situation before the engagement of the large army. Ten to fifteen miles is suitable for short-range early warning, and fifteen to twenty-five miles is used for the advance alert defense of large armies. Thirty miles, forty miles, or even fifty miles, can be won for one to half a day of defense time, which is suitable for early warning of the movement of the enemy's large corps.

Further afield, special methods are needed, such as internal espionage, which can give a few days or even longer in advance after stealing military secrets.

Judging from the location of these two people, the rebels are at least fifteen miles or even twenty miles away from Bailiyan, so that the distance of the rebels should be more than sixty miles from Dingyang, and the rebels will march on the road in the middle of the night tonight, and their vanguard will not arrive at Dingyang City until tomorrow afternoon at the earliest.

Baili Yan saw that the faces of the two of them reacted at this time, and they knew that the situation was not far from ten.

"How, but I still have to elaborate."

"The last general admires, just let the two of them go, our army is afraid that it will be exposed, and please think twice." Lu Gao said.

"Needless to say, release them at once, but don't give them to the horses, and all the consequences will be borne by you."

"No."

Lu Gao and Su Hong were puzzled why Bai Liyan wanted to let go of these two scouts, of course, the two scouts didn't think it was a good thing, and they were a little skeptical. Walking and turning back, turning back and walking, always worried that there was fraud in it, and robbed and killed them halfway.

After the two of them left completely, Su Hong asked cautiously:

"General, is there any mystery in it?"

"Hmph, you're smart. The two of them either turned back the same way and returned to the Black Turban rebel camp, or they failed in their mission and were discovered by our army, fearing that they would be prosecuted by military law, and fled halfway and never returned to the enemy camp again. But in either case, the rebel battalion either did not know that our army had arrived here, or knew that our army was moving south from Guangxin, but did not know the number of our troops and horses. What do you say, what will the Black Turban rebel lord think?

"If the two of them want to return to the camp, even if they use the run, it will take more than half an hour, let alone the night road, how can it take more than an hour. If it is used, it will take two hours. ”

"And then?" Bailiyan asked.

"The rebels don't know the strength of our army, and they want to send troops to attack, so they can get the second half of the night. Moreover, the rebels are all infantry troops, and our army can completely leave them unentangled, throw them off, and go straight to Dingyang.

In other words, the rebels expected that our army would not have many troops, and continued to march towards Dingyang City. Anyway, we can't fight Guangxin again, otherwise the order will be changed again and again, and the morale of the army will inevitably be frustrated, and the continuous forced march will not be unbearable. ”

"In addition, it is also very important that the rebels are still dozens of miles away from Dingyang, and it is impossible to reach Dingyang before our army, so it is possible for our army to transfer the 30,000 cavalry in Dingyang City.

No matter whether the rebels sent troops to attack our army in the second half of the night, or whether the rebels ignored our army and continued to march towards Dingyang, their three armies were bound to be on the march, and our 30,000 cavalry concentrated their forces to attack any of them, and they were powerless to parry. ”

"But wouldn't it be better if the rebels didn't know anything about our army? Now let those two go back, and our army will not be exposed. ”

"Having said that, the rebels will react diametrically opposed to those who know where our troops are gone. Imagine, what if the rebels knew that our army might move from Dingyang to rescue the troops? ”

"Shhh...... Then they may not be able to continue to set off towards Dingyang with peace of mind, nor can they withdraw, once they withdraw, they may be pursued and killed by our cavalry from behind. ”

"Yes, if the rebels don't know that our army is here, they will be on the road in the second half of the night tonight, and we will wait for the horses to be tired, and send the cavalry to Dingyang to give orders, and then the cavalry of Dingyang will arrive at the convergence, and it will be more than eighty miles to come and go, let alone two or three hours have passed, and then add up the time spent on assembly, preparation, and decision, then it will be at least four hours away.

By that time, the rebels had already hit the road, and they were not far from Dingyang, and they would even start to go down in advance. At this time, we had to chase not only the rebels, but also thirty or forty miles, and the people were sleepy and lacking. If you're not careful, you can get under siege. ”

"Then why don't you directly order Ye Dadu to lead his troops to search and attack, wouldn't it take less time." Su Hong asked, Bai Liyan shook his head and said:

"No, the black scarf is camping this afternoon, and will leave for the road in the middle of the night tonight. Even if the news can be delivered to Ding Yang in the first half of tonight, Ye Dadu will need time to prepare for the troops, and it will not be possible to do it overnight.

When Governor Ye Dadu sent troops to arrive, at least in the second half of the night, it is very likely that this general will just collide with the black turban rebels and set off in the middle of the night, the consequences are unpredictable, and the general is not sure that he will be able to make Governor Ye Dadu retreat.

And at the moment, we only know the general location of the rebels, but do not know their details, in case the smear is found in the wrong place, it will be investigated by the rebels.

But if the enemy knows the intentions of our army, he will definitely take precautions, and it will never be possible to continue to rush in the form of a marching army, and he will definitely form a formation, and the speed of the formation march will be extremely slow, and you think about it, will they be able to march in a hurry tomorrow to reach Dingyang? It will take at least one to two days to complete the sixty or seventy miles of the road. ”

The marching state is different from the marching in formation, the marching state is in a vertical formation, stretching for several miles, or even more than ten miles and dozens of miles, so that it is convenient to march, but it is not conducive to turning into a combat formation at any time, and the regular march is faster and will walk forty or fifty miles a day, and the rapid march can go sixty or seventy miles, and it is also possible to forcibly march a hundred miles.

If it is heavy infantry, the frequent march has to be discounted, so the advantage of having horses is that it can allow the infantry to quickly change fields and achieve rapid mobility.

If it is a formation march, it can be considered God to bless if it can walk twenty miles a day, and a formation like Fang Yuan, being chased and beaten by the enemy, can move ten miles a day, even if it is a conscience project.

Judging from the reaction of the Thunder King suddenly drawing troops from Guangxin, the strategy of the Thunder King will not be much inferior to the supernatural powers, if he knew that Baili Yan was only twenty miles away from him, it was possible to use the advantage of horses to draw cavalry from Ding Yang out of the city, and he would definitely not rashly march on the road.

The procession, which stretched for more than ten miles, would be a disastrous result if it was attacked by cavalry at any point.

Unlike the baggage squad that attacked 100,000 people in April, Bailiyan intended to capture all the people. This attack is on the entire formed army, and it is impossible to adopt the tactics of breaking through on all fronts, and it is inevitable to concentrate all elite forces to attack one point.

Under such circumstances, it would undoubtedly be a disastrous result for an infantry army that stretched for more than ten miles. What Bailiyan wants is to slow down the march of the Black Turban rebels so that they can't reach Dingyang tomorrow.

In this way, the Thunder King has two choices.

First, send an elite group of men and horses to set off for Dingyang City in the first half of the night, and the other main force came in the opposite direction, put on a defensive posture to confront each other, and dragged Bailiyan.

Another possibility is that the Thunder Heavenly King set up an ambush in a marching state to lure Baili Yan to attack his brigade, after all, 150,000 people stretch for more than ten miles, and it is impossible to count them one by one if there are 30,000 or 20,000 ambushes in the middle, if there are 30,000 or 20,000 ambushes in a certain section of the road in advance, and then they are defeated and flee, it is not impossible.

But no matter which one it is, it is impossible for it to return to the siege of Guangxin, firstly, the black turban rebels have too much time, Bailiyan has the advantage of mobility, and secondly, it has no meaning. Guangxin will only be more difficult to fight than Ding Yang, even if there is no Bailiyan in charge. Third, the continuous forced march is simply unbearable.

But if Bailiyan does not draw troops from Dingyang City, then the battle situation will develop in the direction of favoring the Black Turban Rebels, and the only way to draw the main force of cavalry is to try to eat a part of the Black Turban Rebels first to reduce the military pressure on Ding Yang City.

Obviously, this is very much in line with Bailiyan's operational characteristics, that is, in the case of inferior or balanced forces, whoever can contain more of the enemy's forces and improve the efficiency of projecting their own forces on the battlefield will be more able to win the initiative in the war.

Even though the Thunder Heavenly King had no way of understanding the essence of Baili Yan's thoughts, but now the 30,000 cavalry in Dingyang City had enough time to mobilize, and everyone could see the fact that Bai Li Yan could think of it, and Thunder could also think of it. If Thunder calculates, Ye Xin's 30,000 cavalry will be in great trouble.

"Su Hong, go and call Lu Gao." Baili Yan Road.

"Yes."

When Lu Gao came when he was young, he was still angry about letting the two of them go.

"General Lu Gao, I haven't figured it out yet."

"The last general doesn't understand why he wants to let those two go."

"Afterwards, General Lu will understand that there is still something to do now, and I want General Lu to go to Dingyang in person."

"The last general will listen to the command."

"General Lu immediately went to Dingyang and informed Governor Ye of the news of us, and must ask Governor Ye to lead all the cavalry to join me. In addition, Ben will immediately repair two letters, one to Governor Ye Dadu, and the other to be sent to Yongxing River within two days. ”

"The last will obey."

Two letters of repair were handed over to Lu Gao, who took a hundred escorts on the road overnight and arrived at Dingyang at six o'clock. Ye Xin had just fallen asleep, and when he heard that Lu Gao suddenly came, he was also very surprised:

"General Lu, why are you here, could it be that something happened to Guangxin?"

"The black turban thieves appeared on the periphery of Guangxin's territory yesterday afternoon, and 150,000 horses suddenly turned around and headed south, and they were rushing towards Dingyang."

"150,000 people, so many!"

Ye Xin was taken aback, 150,000 people beat Dingyang, that was not more than enough. Lu Gao explained the reason in detail, and handed the two letters to Ye Xin, Ye Xin opened his share and looked at it, and suddenly felt incredible. Then he gave the letter to Lu Gao, who was also taken aback.

"This plan is too dangerous, and if you are not careful, the whole army will be wiped out!"

Lu Gao was worried, but Ye Xin said:

"At present, the strength of Beihai County is not even 60,000 capable soldiers, and the rebels are attacking with 150,000, and Ding Yang will definitely be annihilated."

"What does the Governor mean ......"

"Let's count it, if 60,000 war horses are trapped and killed in the city, the loss will not only be Dingyang City, I will immediately give an order, and the whole army will assemble out of the city within half an hour."

60,000 horses, worth less than 3 million yuan equivalent to copper coins, even if Dingyang City is sold, it is not worth this price. The loss of Dingyang City lost 30,000 or 40,000 soldiers, the population of 300,000 was small, the elite cavalry of the Xian army was lost, and the opening of the gate in the north of the capital county was the most sinister.