Shanggu County is roughly located in the northwest of the later Beijing area, outside of Juyong Pass, the location of the administrative office is in the southwest of Xuanhua City, Hebei Province, including Huailai, Xuanhua, Zhangjiakou and other areas, but in this era, the names of these areas have not yet appeared.

Gao Yuan led a large army to Shanggu County, and Sima Shang, the main general stationed here, went out of the city and welcomed Gao Yuan and his party into the city. First of all, he introduced Huang Chong, the Taishou who was originally stationed in Shanggu County, to the plateau.

In fact, the time for Shanggu County to be incorporated into the Zhao State was not long, less than thirty years. It turned out that after the city of Changping, Yan felt that Zhao's national strength was weak, so Yan Wangxi sent Prime Minister Li to lead an army of 500,000 to attack Zhao. The Zhao State sent the famous general Lian Po to lead an army of 130,000 to resist the Zhao army, but the Zhao army won more with less, and the Yan army was defeated, and the main general was killed on the spot. Then Lian Po led the army to drive straight in, killed into Yan, attacked more than 1,000 miles, surrounded the capital of Yan Jijing (now southwest of Beijing), Yan Wangxi had no choice but to cede land and sue for peace, as a result, Zhao State ceded the land of Yan State and set up Shanggu County, only to withdraw from the siege of Jijing. And Lian Po was also named Xinping Jun because of his defeat of Yan, and he was fake to the country.

Huang Chong was Lian Po's general at that time, when Lian Po withdrew his army, he recommended Huang Chong to King Zhao Xiaowen as the Taishou of Shanggu County, and now he has been stationed in Shanggu County for twenty-five years, and has settled his home in Shanggu County, and later there were two major battles between Yan and Zhao, both of which ended with the victory of the Zhao army and the defeat of the Yan army, and Huang Chong participated in these two wars as the Taishou of Shanggu County, one of which was still with Li Mu, and the number of small battles between the two sides in peacetime has been several times a year, but Huang Chong firmly held Shanggu County, It was easy to let Yan Guo occupy a little.

After Sima Shang's army arrived in Shanggu County, Huang Chong immediately surrendered to Sima Shang, expressing his intention to obey the rule of the plateau. As a result, the reconquest of Daijun went smoothly and there was no fighting.

After the ceremony, Gao Yuan saw that Huang Chong's beard and hair had turned gray, and he couldn't help but be a little moved, and asked, "How long will the old general live this year?" ”

Huang Chongdao: "Back to the lord, the last general will be sixty and two this year. ”

Gao Yuan nodded and said, "The old general is already in his prime, and he is still stationed at the border for the country, which is really respectable." ”

Huang Chong was a little unhappy, and said: "My lord, in the past, the old general Lian was nearly eighty years old, and he led the army to defend Zhao, and all countries did not dare to invade Zhao, and the last general was just over sixty, how can he be considered old?" What's more, the last general can still straddle the horse, open the bow of three stones, and eat the whole sheep and chestnut three buckets at each meal. ”

When Gao Yuan heard this, he couldn't help laughing, and said: "Lian Po is old, can he still eat, since the old general is old and strong, it is naturally no better, and this battle with Yan Guo will naturally have a time when the old general will make meritorious contributions." ”

When Huang Chong heard this, he became happy, and immediately straightened his chest and said: "The lord and the Yan army are at war, and the last general is willing to be the vanguard, and he will definitely cut the general for the lord to capture the flag and break the Yan army." ”

This is Sima Shang said with a smile: "Old General Huang, just stop, how to fight with the Yan army, the lord has his own opinions, and when the time comes, it is indispensable to have your battle." ”

Gao Yuan also nodded, and said with a smile: "Yes, the Yan army has dispatched an army of 200,000, and the enemy cannot be underestimated, General Huang, how many people are there in Shanggu County now?" ”

Huang Chongdao: "Back to the lord, there are more than 4,000 defenders in Shanggu County. However, Shanggu County has a total population of more than 300,000, and young and middle-aged men can form an army, and within ten days, no less than 50,000 troops can be raised, and a maximum of 80,000 troops can be recruited. ”

He also knew that this time the plateau only brought more than 30,000 people, plus the strength of Sima Shang's army, it was only about 40,000 troops, compared with the 200,000 army of Yan State, the gap was indeed too big. However, if the people of Shanggu County are organized, then there are almost hundreds of thousands of troops, although they are still inferior to the Yan army, but they also have the strength to fight.

After hearing this, Gao Yuan just smiled, and did not follow Huang Chong's words, and said, "How is the strength of the Yan army arranged now?" ”

Sima Shang said: "Now the army of the Yan army is stationed in front of Juyongsai, stationed along both sides of the water control, and intends to advance along the head of the water control. The Yan army on the south bank of the water was led by Taifu Juwu, while the Yan army on the north bank of the water was led by Yan Tai Xiaodan himself. As he spoke, he opened the map and pointed out to the plateau the current layout of the Yan army.

Gao Yuan also nodded, the layout of the Yan army is basically in line with the art of war, marching along the river is the practice of marching in ancient times, because the river is convenient for transportation, which can facilitate the transportation of materials, and can also block the enemy's assault, at least on the side of the river, you can not do prevention.

In fact, the plateau is still very familiar with the geographical situation of the northwest area of Beijing, although it has been more than 2,300 years in time, but the general topography has not changed much, after all, more than 2,000 years, it is impossible to have a greater impact on the terrain, and the biggest difference is that there is no famous Guanting Reservoir now, and the others are almost the same.

After looking at the map, Gao Yuan also nodded, and said: "This time, the Yan army sent 200,000 troops to attack Dai County, even if we can recruit the people of Shanggu County to fight, it is still less than half of the Yan army, so I think that this time to deal with the attack of the Yan army, we should use the method of luring the enemy to go deep and break them one by one." First let the Yan army's two-way army enter the territory of Shanggu County, clear the walls and fields along the way, and also break the attack on the Yan army's logistics supply line, and wait until the Yan army is exhausted and demoralized, and then choose a place to set up an ambush, encircle and annihilate one of the Yan army, and the other Yan army, and retreat without a fight. ”

When the generals heard this, they all nodded frequently, thinking that the plan of the plateau was feasible, because in the battle of Jingcheng, the plateau used this attack tactic many times to deal with the Qin army, and the result was a good result, this time against the Yan army, this time against the Yan army, this set of tactics can also be used Huang Chong pointed to the map, and said: "On the north bank of the water control, at the intersection of Yanmen water and water control, there is a Molu Mountain, where the terrain is complex, the mountain is dangerous, and it is the only place for the Yan army to enter Shanggu County, and there are not many people living along the road, and there is no need to clear the wilderness with strong walls, Therefore, we can set up an ambush in the vicinity of Mount Molu to encircle and annihilate the Yan army. ”

Gao Yuan knows that the Molu Mountain is the Zhangjiakou Jiming Mountain in the later generations, and the Yanmen Water is the Hebei Yanghe River in the future, which flows into the Sanggan River in the northwest of Huailai County, and then flows into the Guanting Reservoir together. Even after more than 2,000 years, this area is also undulating, the terrain is complex, and there are many rivers flowing through Guò, which is indeed a good place to set up ambushes. Moreover, the Northern Route Army of the Yan State was led by Prince Dan, and it must be the main force of the Yan Army. Therefore, as long as the Yan army is defeated along the way, it will be able to win this battle.

Therefore, Gao Yuan also immediately made arrangements, so that Huang Chong immediately collected 20,000 troops from the residents of Shanggu County, divided into two batches, led by Sima Shang and the men and horses of the headquarters, plus 10,000 Shanggu troops, a total of 20,000 troops, on the south bank of the water, to contain the Yan army on the southern front, and he and Huang Chong joined forces, about 45,000 men and horses, stationed in Molu Mountain, preparing to ambush the Yan army on the northern front.

Of course, it takes a certain amount of time to recruit the army, not only to get people together, but also to cooperate with the corresponding weapons, armor, etc., although in this era, the soldiers recruited from the people can go into battle to kill the enemy as long as they send a spear, but the combat effectiveness must be greatly dismantled, and now the plateau is worried about the lack of population, of course, it will not let the soldiers go into battle like this to die, so it also ordered the county to let the county immediately send a batch of armor weapons over.

In Shanggu County, Gao Yuan and Sima Shang will lead the army of their headquarters first. Only Huang Chong was left in the city of Shanggu County, gathering troops, and waiting for armor and weapons to be transported from Daijun. At the same time, he also collected more ships, cut down trees and built rafts to control the water, transport grain and grass supplies, and left all the chariots in Upper Valley County to guard the supplies.

Huang Chong also drew two hundred-man teams from his own army and handed them to Gao Yuan and Sima Shang respectively, because these two hundred teams were local people who were familiar with the terrain of this area and could guide Gao Yuan and Sima Shang on the road location. And Gao Yuan also divided a hundred people from the special combat team and handed them over to Sima Shang.

This kind of distribution also made both sides very satisfied, because there are many mountains in this area, which is not suitable for tank combat; on the contrary, it is very important to reconnoiter and listen to the enemy's situation, and the special combat team trained on the plateau can come in handy.

After a day's rest in Shanggu County, Gao Yuan and Sima Shangcai set out with their respective armies. Takahara led the army, and after a day's march, reached Mount Molu, and under the guidance of his guide, set up camp in a valley with a water source.

There is a distance of about one hundred and twenty miles from Juyongsai, and there are still many mountains in between, and now the first thing to determine is the movement of the Yan army, and then to decide on its own movement, so the plateau also immediately sent Jiang Huanwu and Ling Feng and others to investigate the movement of the Yan army.

And the hundred-man leader of the hundred-man team sent by Huang Chong to the plateau was called Liu Fu, a young man in his early twenties, and he also took the initiative to ask the plateau to go with Jiang Huanwu and them, and the plateau thought that he was familiar with the terrain in this area, so he agreed to his request and asked him to bring ten soldiers and set off with Jiang Huanwu and Ling Feng.

Then Takahara gave another order for the soldiers to rest well and prepare for battle.

Before Jiang Huanwu and the others sent back the message, there was nothing to do for the time being, so Gao Yuan simply gave the soldiers a day off in turn and let them play in the valley. Because waiting is a very difficult thing, even if the soldiers are locked in the camp and let them sleep, they may not be able to sleep well, and this time is the end of April, it is already the late spring, it is the season of beautiful scenery, so it is better to let the soldiers have a good time in the valley and relax.