30,000 people, 60,000 horses, such a configuration, can completely ensure the speed of the march, Liu Yin even followed Deng Ai's advice, lightly armed, threw away all the baggage materials, each cavalry, only carried seven days of dry food, to ensure the speed of the march to the greatest extent.

Of course, it is impossible for the Shu army to return to Guanzhong from Liangzhou for seven days of dry food, Deng Ai's method is to send fast horses in advance, notify the counties along the road to prepare grain and grass supplies, and directly stack them on the side of the road, when the Shu cavalry arrives, it can not only ensure sufficient supplies, but also not delay the speed of the march at all.

Fortunately, the counties along the road have all been attached to the Shu Kingdom, and after the sentry horse at the front station issued a notice, the officials such as the Taishou Duwei County Order of the counties did not dare to slack off, and immediately prepared dry food and forage. There will be a certain amount of grain and grass stored in the treasury of each county, and the amount that Liu Yin needs is not too large, as long as these counties can provide 30,000 people and 60,000 horses for the needs of these counties, even if the treasury is not enough, it is not difficult to temporarily raise some grain and grass from large households.

Liu Yin set out from Yumen Pass, all the way through Dunhuang, Jiuquan, Zhangye, Wuwei, Jincheng, Longxi, Nan'an, Tianshui, Guangwei, Fufeng ten counties, rushed back to Chang'an, more than 4,000 miles of journey, only took ten days, simply created a myth in the history of the march.

Liu Zhan and Xun Zheng looked at Liu Yin, who was like a divine soldier descending from the sky, and was so shocked that their jaws almost fell to the ground, ten days ago Liu Yin was still in Yumen Pass in Liangzhou, and he actually returned to Chang'an at this time, the speed was unbelievable.

Liu Yin didn't care to explain more to them, the war on the Eastern Front was tense, and saving soldiers was like fighting fires, and one more day of delay would increase the risk. Liu Yin immediately inquired about the battle situation on the Eastern Front.

The daily battle situation in Tongguan, Wuguan, and Pubanjin will be reported to Chang'an in real time, so Liu Chen has first-hand information at hand. The current situation is quite grim, and there is no room for optimism at all. Tongguan and Wuguan Jin generals Yanghu and Du Pre led 100,000 and 50,000 troops respectively to attack day and night, Fu Tong and Wang Qi are doing the last insistence, sworn to fight to the death, although the two Guancheng have not yet been lost, but the situation is already dangerous, if there are no reinforcements to reinforce, I am afraid it will be difficult to hold on.

As for Pubanjin, the Shu army repelled the first river crossing operation of the Jin army, and after sinking a lot of ferries, the Jin army did not cross the river again, but from the information in hand, Hu Fen did not rest, but mobilized ferries on a larger scale, and even mobilized warships from other places to prepare for a larger river crossing operation.

The drop in the water level of the Yellow River will undoubtedly be more conducive to the Jin army's river crossing operation, while the difficulty of the Shu army's defense has increased exponentially.

After Liu Yin learned about the specific situation of the Eastern Front, he immediately made a decision to divide the troops, and ordered Fu Zhao to take 5,000 people to Lantian to assist in the defense of Wuguan, if Wang Ji could not hold on to Wuguan, he would order him to retreat to Shangxian and Lantian, after all, Wuguan Road is 100 miles long, even if Wuguan is lost, it is not an emergency, as long as it can hold Lantian Pass, it can be safe.

But Tongguan is different, once lost, the gate of Guanzhong will be lost, and the Jin army will drive straight into Chang'an. Therefore, the importance of Tongguan to Guanzhong is ranked first, and after dividing the troops to defend Lantian, Liu Yin personally led 25,000 cavalry to Tongguan.

As for Pubanjin, Liu Yin didn't send many people, but only sent Ah Jian to rush to Pubanjin with a song of men.

All the generals were puzzled, thinking that although the situation in Pubanjin was not as urgent as that of Tongguan, the Jin army was sharpening its knives on the east bank and could attack at any time, and Liu Yin only sent 200 people to reinforce it, which was a drop in the bucket.

In this regard, Liu Yin just smiled slightly and said: "Two hundred, enough!" ”

From Chang'an to Tongguan, if you are fast, you can't even use it for a day, and Liu Yin led the army to soon arrive at the west gate of Tongguan.

Fu Yi heard that Liu Yin's reinforcements had arrived, and he was overjoyed, in the face of the Jin army's fierce attack day and night, the Shu army guarding the pass was indeed difficult to support, and the arrival of such a new force at this time was tantamount to injecting fresh blood, and the entire defender was a spiritual shock. Fu Yan opened the city gate and welcomed Liu Yin into the gate.

Don't look at the city wall outside Tongguan is short and narrow, but there is a hole in the pass, there are hundreds of hectares of fields alone, surrounded by rivers, this pattern of land in the city is really unique, if Tongguan is surrounded outside, the wall can not be broken, the hundred hectares of fertile land in the city alone is enough to feed tens of thousands of troops, so when Liu Yin's 25,000 cavalry and 50,000 war horses poured into the Tongguan city, the land in the pass is still spacious and much more abundant.

"Wenxuan, I heard that you were still in Liangzhou a few days ago, why did you rush back to Guanzhong so quickly?" Fu Yan was overjoyed, but he was still confused, even if it was a cavalry, he wouldn't rush back so quickly, right?

Liu Yin explained with a smile: "This is all thanks to Mr. Ai's good strategy, light and simple, two horses per person took turns to ride, and it took ten days to travel 4,000 miles, so I was able to come back." ”

Fu Yi admired: "Mr. Ai is really a good talent in the world, the situation in Tongguan is dangerous, three or five days late, it is really hard to say how the battle situation is." ”

"How's the battle going?"

"The chief general of the Jin army is Yanghu, for many days, day and night, the offensive is extremely fierce, our army is extremely tired, we can only grit our teeth and barely support."

Liu Yin turned around and instructed Deng Pu: "Order the whole army, abandon Ma Dengcheng, and take over the former army soldiers to defend the city." ”

Deng Pu took the order generously, and 25,000 cavalry jumped off their horses, carrying bows, crossbows, knives and spears, and marched towards the city wall in an orderly manner. Although these cavalrymen are good at fighting on horseback, they are not weak in horseback and foot fighting, and the archers with high riding and archery skills can't be ordinary archers?

The soldiers of the front army are indeed at the end of the strong crossbow, and the fierce battles for many days have almost exhausted their physical strength and energy, and they only insist on a strong belief, Fu Yan, Zhang Le, Zhao Zhuo, Ma Rong and other generals have always been fighting on the front line, and it is precisely because of their existence that the morale of the Shu army can be inspired.

At this moment, the reinforcements arrived, and the former soldiers could not help cheering, their perseverance was finally rewarded, and they could finally go down to the city to have a hot meal and sleep. The battle was fought so hard that as soon as they slackened, many of the soldiers did not even have the strength to raise their arms, and many had just returned to the camp from the city, and fell asleep, so sleepy that they could not even lift their eyelids.

Zhang Le looked at Liu Yin and said loudly from afar: "Big brother, you're back, you really want to mess with your brother!" (To be continued.) )