After leaving the Hanzhong Governor's Mansion, Liu Yin immediately stepped up the deployment and strictly guarded the various passes, although Liu Yin also thought that the hope of intercepting the Wei spies was not too big, but he still tried his best to fight.

Accompanying Liu Yin was the guerrilla captain Lu Xun.

Lu Xun has a group of men under him. The military system of the Han Dynasty took the army as the most basic unit, five people were a team, set up a captain, two soldiers were a tithe, set up a chief, five troops were a team, set up a team rate, two teams were a tun, set up Dubo, Wutun was a song, set up a military marquis, two songs were a song, the chief officer was a captain, and the deputy chief officer was Sima. A division of 1,000 men exists as an independent combat unit.

In the Eastern Han Dynasty, the ministry was basically the highest establishment unit of the army, such as the Northern Army was divided into five divisions: Tun Cavalry, Yue Cavalry, Infantry, Changshui, and Shooting, as the army directly under the central government, the five schools of the Northern Army should be the most regular establishment of the Han Empire, and the other county soldiers and border guards also roughly changed slightly according to this establishment.

But this kind of establishment was disrupted in the last years of the Eastern Han Dynasty, after the Yellow Turban Uprising, the establishment of the Eastern Han Dynasty imperial army also swelled rapidly, first added the eight captains of the West Garden, and later abolished the thorn and placed the pastor, and the state pastor was in charge of the military and political power of a state or even several states, as a result, the warlords in various places supported their own troops, and the melee was endless, and major battles of tens of thousands or even hundreds of thousands of people occurred from time to time. The commander of the battalion is a general, and the commander of the army is a general, and in order to meet the needs of large-scale battles, there is often a temporary establishment of the capital governor to lead several troops, such as Yu Ban, who was flooded by Guan Yu and the Seventh Army. As for the size of the army, there is no fixed number of troops, and when it is small, it may be only a few thousand men, and when it is large, it may be as many as tens of thousands.

Due to the increasing number of people with military merits, the number of generals is also increasing, and the status of the majestic captain in the Eastern Han Dynasty has deteriorated in the Three Kingdoms era, and in the army, at most, he can only be regarded as a middle-level officer.

Although Lu Xun's status in the Hanzhong army is not high, but it does not hinder his seniority, Lu Xun is still extremely excited to serve as a guerrilla captain, in his opinion, to be able to lead the troops to shoulder the independent combat mission, is General Jiang Wei's trust in him, and at the same time he is also full of confidence in the upcoming battle of Hanzhong.

In his words, only real military merit is his only chance to rise from a lieutenant to a general. A soldier who doesn't think about a general is not a good soldier, and in the same way, a captain who doesn't want to be a general is definitely not a good captain.

Luson was full of longing for war, and this desire was undisguised, and he was almost paranoid about victory.

"The army against Wei dares to attack, and the land of Hanzhong is where they are buried!"

Liu Yin likes Lu Xun with a simple and straightforward personality, he is almost an out-and-out professional soldier, full of enthusiasm and passion, and has the spirit of obeying orders as his vocation.

The order given to him by Hu Ji was to assist Liu Yin in the investigation of the Wei spies, and Lu Xun obeyed Liu Yin's orders almost unconditionally, and all the troops under his command were dispatched by Liu Yin at will. Due to the large number of exports in Hanzhong, the forces of the Lieutenant's Mansion were overstretched, so Liu Yin naturally had to mobilize Lu Xun's men and horses to cooperate with the operation. Lu Xun's attitude was positive, and he fully cooperated with Liu Yin's actions, no matter how far away the checkpoint post was, as long as Liu Yin gave him an order, his army would be in place at any time.

Lu Xun's full support made Liu Yin very grateful, you must know that the military and the lieutenant's mansion have always been very prejudiced, even if Hu Ji ordered, many other garrisons mostly adopted the attitude of yang and yin, which made Liu Yin very headache, and now with Lu Xun's full support, it made Liu Yin feel relaxed and convenient.

"Captain Lu, if the Wei army comes to attack, how will your people fight?" Liu Yin and Lu Xun walked side by side, and Liu Yin asked him intentionally or unintentionally. In Liu Yin's impression, Lu Xun was killed in the battle between Nanzheng and Zhonghui's main army, and in that battle, Lu Xun almost cut Zhonghui.

Lu Xun laughed and said: "A certain must lead his troops to fight the enemy to the death, Hanzhong is mountainous, the terrain is dangerous, our troops only need to lie in the dangerous places of the mountain road, and when the enemy's main force passes, they will be broken in one fell swoop!" ”

Liu Yin smiled slightly and said, "This is an ambush, not a guerrilla." Since the general has given Captain Lu the post of guerrilla captain, do you know what is the difference between the guerrilla tactics and the ordinary tactics? ”

Lu Xun couldn't help but be slightly stunned, to be honest, he really didn't distinguish the difference between ambush and guerrilla, in his opinion, as long as he could destroy the enemy, no matter what tactics he used, as long as he succeeded.

"Guerrilla? It's just a guerrilla attack, taking advantage of the enemy's unpreparedness to attack them back and forth. ”

Liu Yin smiled, although the term guerrilla has been around for a long time, even Sun Tzu Wu Qi and other masters of the art of war may not be able to truly interpret its meaning, let alone Lu Xun, who was born from a humble background and didn't know a few words in Douda, throughout the five thousand years, the one who can really appreciate the essence of guerrilla warfare is naturally none other than Mao Taizu, a great man of later generations.

It seems that Captain Lu still has not been able to truly understand the meaning of guerrillas, guerrillas, naturally swim and attack, but how to swim and how to fight, there are their own tricks. In this way, I will give you the 16-character formula, and if you think about it carefully, you will naturally understand how to fight this guerrilla war. These 16 words are: I retreat when the enemy advances, I disturb when the enemy is stationed, I fight when the enemy is tired, and I chase after the enemy when he retreats! ”

"The enemy advances and I retreat, the enemy is stationed and I disturb, the enemy is tired and I fight, and the enemy retreats and I chase?" Lu Xun silently recited these sixteen words, and fell into deep thought for a moment.

Liu Yin said with a smile: "The so-called enemy advances and I retreat, that is, when the enemy's strength is strong, we must temporarily avoid its front, avoid head-on conflict with it, and preserve our own strength; The enemy is stationed in us to harass the enemy, which means that when he is camping, he should be harassed, so that he cannot eat and sleep, and for a long time he will be mad and exhausted; When the enemy is tired, it is the ideal time for us to attack, the enemy is tired and we fight, if we want to fight, we must fight hard, hit the enemy until the flesh hurts, and annihilate his living force; When the enemy retreats, we must be bold and resolute in our attack, and we will increase the victory. Water is impermanent, soldiers are impermanent, this guerrilla warfare method is the most mysterious, as long as Captain Lu can really understand the sixteen-character formula, why not be afraid of the attack of the Wei army! ”

Lu Xun suddenly brightened up, and bowed his hand and thanked: "Thank you Liu Youcheng for your advice, listening to your words, Lu has benefited a lot." ”

Liu Yin smiled, and was just about to speak, when a horse flew in and reported: "Lord Qiqi Youcheng, Chen Cang Daokou found a spy of the Wei State!" ”