Sanwei Mountain is located in the east of Dunhuang, east and west are about dozens of miles wide, and its "three peaks are towering, such as danger and want to fall, so the clouds are three dangers". Sanwei Mountain is a more dangerous pass on the Hexi route, it is the only way to lead from Jiuquan to Dunhuang, if you want to take Dunhuang, you must first get the three dangers.

After Ma Xun formed an alliance with the bald tree function, he naturally listed Sanwei Mountain as the first line of defense for Dunhuang's defense, and laid heavy troops in Sanwei Mountain to try to resist the attack of the Shu army.

When Liu Yin led the Shu army to arrive at the foot of Sanwei Mountain, it was already the middle of May, and May in the desert had entered the hottest season, morning and evening were better, around noon, the blazing sun made the sand hot, and the heat wave was rolling, almost making people feel almost suffocated.

Since the beginning of this year, drought has ravaged the entire Hexi Walk, since last winter, the whole Hexi Walkway has not fallen a drop of rain, many rivers have dried up, and what should have been a lush oasis is now in addition to the desert that can not be seen at a glance, there is no trace of vitality and greenery.

The long march made the Shu army look tired, the lack of water made the Shu army face great trouble, more than 60,000 people and horses drinking water is by no means a small amount, the drying up of many rivers made the Shu army in the solution to the problem of drinking water in a dilemma, marching on the desert Gobi, no water to drink is simply fatal.

Looking at the soldiers with smoke in their throats, Luo Xian said to Liu Yin worriedly: "General, if you don't solve the problem of drinking water, I'm afraid that the army will be weak in advancing, and if it continues like this, it will be difficult for the army to cohesion, and the battle will not be able to fight." ”

Liu Yin is also very aware of the dilemma he is facing now, starting from Jiuquan to Dunhuang, there is only a big river in Shule River along the way, and from the end of the water to the west, until Dunhuang hundreds of miles of road, there is almost no river on the way, the dry riverbed gushes up fine sand folds, and it seems that you can still see the traces of the water flow, but under the hot sand, you can't find any water source.

Water is the source of life, no water, more difficult than no food, Liu Yin in order to solve the problem of drinking water, built a lot of water wheels, even those side cars are as much as possible to load wooden water tanks, store a large amount of water, on the one hand as a defensive weapon to block the enemy's attack, on the other hand become a means of transportation for transporting water, can be described as a vehicle for two purposes.

But in spite of this, the lack of water has become the biggest problem of the whole army, and the further forward, the more acute this contradiction is, now each soldier of the Shu army can be allocated no more than one pound of drinking water per day, in this hot environment, such a little water is simply a drop in the bucket, there is no doubt that the lack of water will also make the combat effectiveness of the Shu army sharply reduced.

Luo Xian and many generals have revealed the intention of retreating, in the current difficult environment, if forced to march, I am afraid it is difficult to receive results, according to the news from the scouts, Dunhuang too shou Ma Xun and bald tree function has come together, jointly sent troops to guard the main road to Dunhuang Sanwei Mountain, if they stick to Sanwei Mountain, the Shu army will definitely be trapped under Sanwei Mountain, then the situation of water shortage will be more serious. The ideal strategy now is to retreat back to Jiuquan first, and wait until autumn, when the rains are abundant and the water is no longer troubled, so that there will be a chance of victory.

However, Liu Yin did not adopt the opinions of Luo Xian and others, traveling a hundred miles and half ninety, if he retreated at this moment, it was likely to fall short, and now the Shu army has indeed encountered some difficulties, but no matter how big the difficulties are, can it be as difficult as climbing the snow mountains and crossing the grassland? If Liu Yin hadn't made up his mind at the beginning and made a dangerous move, how could he have the good situation in Huyuan Guanzhong today, compared to the difficulties at that time, this difficulty now is really nothing.

The land of Liangzhou has now taken most of it, and the bald tree function has also been disabled, and now if you can take advantage of the victory, you will definitely be able to annihilate the remnants of the Xianbei people in one fell swoop, if you are a little lax at this time, it will give the bald tree function a chance to breathe, and it will not be easy to destroy him in the future.

Therefore, Liu Yin has already made up his mind to march, in addition to increasing efforts to transport water from the Jiduan River, he also tried to find water sources as much as possible along the way, and even sent people to go deep into the Qilian Mountains, just to seek a handful of clear springs.

More importantly, the Shu army must fight quickly, and only by crossing the Sanwei Mountain and approaching the city of Dunhuang can the problem of water shortage be truly solved. Outside the city of Dunhuang, surrounded by a river with water, the water is full, it is the only surface river in Dunhuang County, if the Shu army can break through the Sanwei Mountain, the problem of water shortage can be solved.

Therefore, the biggest problem in front of the Shu army is not the lack of water, but how to take the Sanwei Mountain as quickly as possible, which is also the best way for the Shu army to resolve the crisis.

When he arrived at the foot of Sanwei Mountain, Liu Yin did not rush to attack because he wanted a quick victory, but set up camp on a dry riverbed twenty miles away from Sanwei Mountain, continuously sent multiple scouts, and even sent Ah Jian to personally investigate the situation of the defenders of Sanwei Mountain.

Every battle is regarded as a decisive battle to fight is Liu Yin's requirement for himself, strategically to despise the enemy, tactically to pay attention to the enemy, Liu Yin did not because he had defeated the bald tree function several times to be proud and frivolous, thinking that the bald tree function is already vulnerable, in the face of the former Hexi hero, Liu Yin fought with it, all step by step, cautious, this time of course will not be an exception.

Ah Jian quickly got back the information that Liu Yin needed, or Ah Jian is Liu Yin's most trustworthy subordinate, every time he shoots is not leaky, after Ah Jian personally investigated, it has now been figured out, the one guarding the Sanwei Mountain is the bald tree function of the henchman general without bones, he led 20,000 Xianbei soldiers to camp in the dangerous place of the Sanwei Mountain, and at the same time Ma Xun also sent some men and horses to assist the boneless ability.

Liu Yin's face showed a slight smile, saying that it is impossible for people to step into the same river twice, but the Xianbei people obviously did not learn the lessons in this regard, and after the failure of the first line of the gorge, they continued to gather heavy troops to hold the danger, it seems that the bald tree function did not realize that the defeat of the first line of the gorge is not just an accidental factor, maybe he thinks that the battle of the first line of the gorge is the result of the mistake of the first line of Han, if another person is to guard, it will inevitably have different consequences.

This is undoubtedly good news, Xianbei people have gone farther and farther on the road of promoting shortcomings and avoiding strengths, Liu Yin believes that this battle, he is definitely sure to win. (To be continued.) )