Zhao Wuling Wang Hu Fu cavalry shooting, positive changes, Zhao State strength greatly increased. So he successively defeated the Xiongnu other species of Lou Fu and Lin Hu, and incorporated the land of thousands of miles of Lin Hu and Lou Fu into the territory of Zhao State, and set up three counties of Zhong, Yanmen and Dai to govern it.

At the same time, the Great Wall was built from Xuanhua, Hebei Province along the Yinshan Mountain Range to the west to the Wolf Mountain gap north of the Wuyuan of the present-day Hetao, so as to achieve the purpose of consolidating the land and defending Beihu.

Although the Great Wall was built to block the torrent of the Xiongnu, the fortress was dead after all, and the war horses of the Xiongnu spread their hooves, and there was always a loophole to be drilled; Zhao Jun was overwhelmed and very passive. Zhao had no choice but to set up heavy troops in Daijun and Yanmentun to guard the frontier.

This situation lasted for decades, until the emergence of Li Mu.

There are not many historical records about Li Mu's appearance, even if it is Li Mu's victory of breaking the Huns, there are still two theories in the academic community. One version says 265 BC and the other says 244 BC. The difference of 21 years before and after shows the lack of historical materials.

The only thing we know for sure is that in 246 BC, Li Mu was transferred back to Handan from the frontier and sent an envoy to Qin as the prime minister, concluded an alliance, and welcomed back the prince who served as a proton in Xianyang.

Combined with the generals who can be trusted by King Zhao and sent to the northern Xinjiang to guard, they will not be less than 30 years old in any case, or even close to 40 years old. According to historical records, Li Mu held the town in northern Xinjiang for nearly ten years before he achieved this great victory. It is also recognized in the history books that Li Mu died in 229 BC, and the cause of death was killed by the Qin state's counter-intrigue.

Then the time of the battle of Zhao to break the Xiongnu is about to come out--- 244 BC. Then Li Mu was only 55 or 65 years old when he died, and his birth time was roughly between 294 BC and 284 BC......

This most critical issue has been sorted out, and there will be a clue as soon as qiē.

I can safely say that around 254 BC, King Zhao Xiaocheng appointed Li Mu as a border general. Since then, Li Mu has officially entered the big stage of the Warring States.

The "Historical Records" clearly pointed out that when Li Mugang was stationed in the frontier, he set up institutions and officials according to the needs of actual combat, and the local land rent and tax, after obtaining the consent of King Zhao, were not handed over to the central government, and all of them were used for military expenditure.

With military spending guaranteed, military measures must also keep up. Li Mu ordered to repair and increase the beacon tower, and send elite soldiers to guard the watch; We should improve the intelligence network, lengthen the intelligence chain, and send a large number of intelligence personnel to infiltrate enemy territory to collect information from various sources and find out intelligence.

After that, it was to select and train elite soldiers, and greatly improve the treatment of non-commissioned soldiers, so that the elite soldiers gradually took shape. Logically speaking, military training requires actual combat. Li Mu made a strange rule, which is commonly said, "As soon as the Huns come, we will immediately retreat into the castle to defend." Who dares to covet the capture of prisoners and make meritorious contributions, start a war in vain, kill without mercy, and make a decisive decision! ”

In the years following this (the author thinks it was about three or four years), every time the Xiongnu invaded, they returned in vain. The Huns ridiculed Li Mu for his timidity, and his subordinates gradually complained.

Gradually, such rumors reached King Zhao's ears, and King Zhao was naturally very angry when he heard it.

Killing cattle and sheep all day long, spending public money, and the troops are doing nothing like this, so what is the use of raising soldiers?

He thinks so for good reason. You must know that at that time, the Battle of Changping had long passed, and the Zhao State suffered heavy losses and its strength was greatly weakened. Financial resources absolutely do not allow him to raise a useless army for nothing. So he immediately sent a messenger to reprimand Li Mu for not being afraid of the enemy like a tiger, and asked Li Mu to attack.

Li Mu turned a deaf ear, and a general was not affected by the king's life. King Zhao was angry and transferred Li Mu to Handan, gave him an idle post for retirement, and sent someone else to replace Li Mu.

The new general actively met the invading Xiongnu, but unfortunately won more than defeated. The people on the border had no intention of farming, and the fields were all deserted. King Zhao was in a hurry and asked Li Mu to come out of the mountain again.

The envoy came several times, but Li Mu did not go out of the door, saying that he could not take office because of "physical reasons". This is, of course, not physical, but psychological. Three invitations and three pushes, having already given enough face, King Zhao Xiaocheng stopped acting and forced Li Mu to go on the expedition. Li Mu took advantage of the situation and put forward the conditions: "The king will use his ministers, and the ministers will dare to obey the order." After receiving permission, Li Mu returned to his post.

In the following years, the scene of Li Mu's early tenure reappeared. The Xiongnu returned in vain for several years (still three or four years), and always thought that Li Mu was cowardly and could be bullied.

Just when the Xiongnu were slackening, Li Mu made a move. And all he has to do is make a splash.

The "Historical Records" records that Li Mu "selected 1,300 cars, 13,000 horses, 50,000 people with 100 gold, and 100,000 people", so the number of troops should be around 160,000.

On the occasion of high autumn and horse fattening, Li Mu's ten-year net was finally opened. He ordered the people to go out to graze, and for a while, the whole area was full of cattle and sheep, and the Huns heard the wind and moved.

After tasting a little sweetness deliberately given by Li Mu for the first time, the Xiongnu tried their best to try to get this big bargain that they hadn't seen for a long time, and make a lot of money. Unexpectedly, he was greeted by Zhao Guo's ruthless arrows.

After a bitter battle, Zhao defeated the Xiongnu and killed more than 100,000 Xiongnu horses. Then Li Mu led his army to eliminate the swaddling, defeated Donghu, forced Lin Hu to surrender, and fled.

The consequence of this battle was that the Xiongnu did not dare to approach the border of Zhao for more than ten years, and the vitality of the Xiongnu was greatly damaged. The state of Zhao gained a stable situation in the north. Li Mu has also become a world-famous general.