Although Qin Ming had watched many war movies in later generations, he knew very little about ancient warfare methods!
He asked Li Yuan what he thought of this war, but he just wanted to give it a try.
After all, in his opinion, no matter how inconspicuous Li Yuan was, he still knew more about ancient wars than he, a time traveler.
He wanted to know how long Lanzhou City could be defended based on past war conditions.
Can I be of any help?
After all, Cheng Chumo and Cheng Chuliang can be said to be his few friends since he traveled through time!
At least they have one of the three major irons of men!
Besides, Cheng Yaojin and Cui also took good care of him.
He could feel that Cheng Yaojin and his wife really took care of him as their own junior!
But to Qin Ming's surprise, his grandfather's analysis of the battlefield directly exceeded his expectations.
He actually analyzed this war in a clear and logical way, which at least sounded very reasonable to Qin Ming.
Qin Ming suddenly stood up and interrupted Li Yuan.
"Old man, wait a minute, I'll get the map."
Li Yuan was stunned when he heard this, his eyes flickering a little.
In this era, maps were classified as imperial secrets and were not something ordinary people could possess.
Qin Ming walked to the bookcase and after rummaging for a while, he came back with a folded map.
After Qin Ming spread out the map, Li Yuan took a closer look and found that it was indeed the map of Longyou Road.
The map not only marks all the roads and towns along the route from Lanzhou City to Chang'an City, but also roughly depicts the boundaries of Tuyuhun, Tubo and Datang.
"Brother Ming, where did you get this map?"
Qin Ming handed Li Yuan a charcoal pen and then explained:
"My grandson got this map from His Majesty when he was on duty at the Road and Bridge Department."
"My grandson will explain to you about the map later. Please analyze it first. According to the current situation, how long can Lanzhou City be defended?"
"Can the imperial court's reinforcements arrive at Lanzhou City before the city is broken?"
Li Yuan took the charcoal from Qin Ming's hand, thought about it and asked:
"I just heard from Girl Wan that the current defenders of Lanzhou City are led by Langya Hou Niu Jinda?"
Qin Ming nodded.
Li Yuan thought for a while and said:
"I once heard that Langya Hou, who leads the army, is always cautious and cautious, and he is the best at defending the city!"
"If he is the general guarding the city, it won't be a problem to guard it for a month."
"Of course he can hold on only if Tuyuhun and Dangxiang don't continue to send more troops to Lanzhou."
Qin Ming frowned when he heard this and asked:
"What if Tuyuhun continues to increase his troops? Or what if he attacks Lanzhou at all costs?"
Li Yuan stroked his gray beard and said confidently:
"As long as the coach of Tuyuhun is not confused, he will not waste time in Lanzhou."
"Nowadays, most of the imperial court's troops are besieged in Lanzhou, and Lanzhou's rear is empty of troops."
Having said this, Li Yuan drew a few circles on the map with a charcoal pen.
"Tuyuhun only needs to send a few light cavalry to attack and occupy Lintao County, Yuzhong County and Fenglan County on Longyou Road. This can cut off all the supplies to Lanzhou City."
"And by guarding these three must-pass roads, we can also block the imperial army rushing to help."
"As long as they delay it for about seven days, Lanzhou City will almost be captured. By then, several armies will gather together, and Chang'an may be in danger."
Qin Ming was stunned for a moment when he heard this, and then said in confusion:
"Old man, didn't you just say that Lanzhou City could be defended for a month?"
Li Yuan rolled his eyes and looked at Qin Ming as if he were an idiot.
"I suddenly feel a little thirsty."
Qin Ming was stunned and gave Li Yuan a big roll of his eyes, then stood up and poured a cup of tea for Li Yuan.
"Master, you have tea."
It was rare for Li Yuan to see Qin Ming deflated, and his heavy mood suddenly felt much better.
"It's much better for you to be a sensible boy than to be a human being."
As a war novice, Qin Ming kept his posture very low. He bowed and took the tea cup from Li Yuan, pretending to be asking for advice humbly.
"Please give me advice, old man."
Li Yuan leaned on the sofa triumphantly, narrowed his eyes and asked:
"Brother Ming, do you know how long it will take for the imperial court's reinforcements to leave for Lanzhou?"
"After starting from Chang'an, how long does it take to get to Yuzhong County, which is closest to Lanzhou?"
Qin Ming shook his head when he heard this.
"If the imperial court wants to send troops to relieve the siege of Lanzhou, Chang'an must dispatch at least two of the sixteen guards, that is, 60,000 people!"
"In addition, at least 100,000 people must be recruited to transport grain and grass."
"And the premise of all this is that Lanzhou City cannot be lost before the army arrives in Lanzhou!"
"Let's not talk about how long it will take to recruit people. Let's just say that raising enough rations for 160,000 people for a month will not happen overnight!"
Qin Ming's scalp went numb when he heard this. One month's rations for 160,000 people!
An ordinary person in the Tang Dynasty ate about two kilograms of rations a day, and a month's ration was almost half a stone.
A month's ration for 160,000 people is 80,000 shi, which is terrifying just thinking about it!
At this time, Li Yuan continued:
"If the imperial court's 60,000-strong army wants to go on an expedition, it will take ten days at the earliest to raise it."
After speaking, Li Yuan clicked on Chang'an and Lanzhou on the map.
"Chang'an City is about 1,400 miles away from Lanzhou City. Even if the reinforcements sent by Chang'an are forced to march day and night, it will take at least fourteen days to reach the battlefield."
"But don't forget, the army has to march for fourteen days, and it will take at least two days of repair before the army can fight."
"Calculate for yourself, if the enemy army is in Yuzhong County and blocks the imperial court's reinforcements for seven days, how likely is it that Lanzhou City can be defended?"
After speaking, Li Yuan threw the charcoal pen in his hand onto the map.
He clapped his hands, leaned back on the sofa, and looked at Qin Ming with interest.
At this time, Qin Ming had cold sweat on his forehead. After listening to Li Yuan's analysis, he suddenly understood why Cheng Chumo wrote him such a letter.
Presumably, he already had a premonition that Lanzhou would most likely be lost!
Thinking of this, Qin Ming couldn't help but recall his past experiences with Cheng Chumo.
[Damn, if the cement road from Lanzhou to Chang'an was repaired earlier, the army would definitely be able to reach the battlefield a few days earlier. ]
[Fuck, it would be great if there was a high-speed rail. It only takes more than two hours from Lanzhou to Xi'an! Even if you have a car...]
[Damn, how could I forget that! ]
Thinking of this, Qin Ming suddenly stood up and said with excitement:
"Grandpa, my grandson wants a way, which seems to help the imperial army and shorten the time on the road."
A smile flashed in Li Yuan's eyes when he heard this, but he quickly restrained it.
He straightened up, smoothed his long gray beard, and asked curiously:
"What's the solution? Tell me, I'll help you with the details."
........
