Li Yunze, who put away the crossbow, left with the horses.

The panic and shouting on the other side did not have the slightest attraction to him, and he didn't know how to take a second look.

Since it is no longer possible to cross the river, the only way to cross the river is to find another entrance.

The east-west Karakoram Mountains and the west-east Hindu Kush Mountains almost completely cut off the possibility of southward movement.

Steep mountain passes are garrisoned by Tibetan soldiers and horses, and storming such steep mountain passes is almost no different from suicide.

Flipping through the map that had already been reflected in his mind, Li Yunze made a decision in the shortest possible time.

The army marched along the Karakoram Mountains and quickly galloped to the southeast.

Along the way, they encountered the Zahu tribe or the Tubo people who were sporadically active, and they were all wiped out when they went up, and then the materials were plundered, the cattle and sheep were disposed of as food, and the horses were all taken away as pack horses.

The Karakoram Mountains are so magnificent and majestic, and the white glaciers and snow above the snow line make many soldiers from the north of the Tang River and other places stunned.

In Xue Rengui's words, 'I have never seen such a high mountain in my life!' ’

It is indeed high, and it is not an exaggeration to say that it is straight into the sky.

Especially under the highest peak, Li Yunze said to the soldiers, "This is Qiaogeli Peak, it should be said that it is the prototype of Buzhou Mountain." ’

The soldiers looked up, and under the blue sky, a white snow-capped mountain reached into the sky, which was particularly conspicuous among the tall mountain ranges.

"Is this Buzhou Mountain?"

"West Kunlun, Queen Mother of the West. This is West Kunlun~~~"

"Do you want to worship gods?"

"This is not such a high mountain, who can climb it."

"Silly you, the gods are all flying."

“......”

With the exception of Chogori Peak, almost every mountain in West Kunlun is a high mountain, and one-third of the world's dozen or so highest ranked peaks are located here.

There are as many as four of them above 8,000 meters above sea level.

What makes Chogori so special is that in addition to its altitude, the mountain is just as high as four thousand meters!

A four-kilometer-high mountain is in front of you, and it is vaguely the legendary Buzhou Mountain that connects heaven and earth, and the excitement of the soldiers of the Tang Army is understandable.

Just like the Classic of Mountains and Seas says, the environment here is really too barren.

I dare not say that there is no grass, but it is definitely not suitable for human habitation.

This is a real plateau, and the soldiers of the Tang Army often cook undercooked when they eat.

As for the physical reaction, it is suppressed by rhodiola and saffron.

If it really didn't work, he returned to Shule early.

The best thing about going this route is that no one knows where they are or where they're going.

Li Yunze knew where he was going, and continued south to the Karakoram Pass.

In the past, when the river was crossed, it was the small Bolu country, and if nothing else, Cheng Yanjin's department was there.

The Karakoram Pass that I am walking on now is the Great Bolu Kingdom in the past.

Walk along the road to the northwest along the Great Bolu Kingdom, and you can reach the Little Bolu on the other side of the Karakoram Mountains at this time.

Compared to other places, the Karakoram Pass is spacious enough.

When I came here, it was not surprising that there were Tibetan soldiers and horses stationed here.

Li Yunze also wanted to laugh, the Tubo people really invested a lot of money this time, and they could be seen almost everywhere.

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The Karakoram Pass is very spacious, and although the Tibetans have the advantage of the plateau terrain, the altitude sickness of the Tang army, with the help of medicine and food, is far less severe than imagined.

Of course, this thing is called miasma in this era.

Thousands of Tang cavalry defeated an opponent of a similar number with a single charge, and then passed through the mountain pass to the other side of the Karakoram Mountains.

Coming this way, it's completely different from the other side of the mountain.

Between the high mountains here, there is a large river that meanders.

The name of the river was the Shiquan River, and in later generations it was called the Indus River.

The water of the Shiquan River is extremely clear, pure and cold, after all, it is the melting of mountain glaciers and snow.

Once you find the river, the rest of the journey is much easier, just walk up the river.

The road in the river valley was relatively flat, and the villages and towns of the Great Bolu Kingdom along the way were not only shocked but surrendered when facing the Tang army.

Those who really choose to resist are the places where the Tibetans are stationed.

From here, one of the weaknesses of the Tubo people's operation can be seen, that is, the forces are too scattered.

Put a few thousand here, arrange a few hundred there, and in the case that the combat effectiveness is far inferior to that of the Tang Army, it is basically given away for nothing.

Li Yunze didn't be ruthless to the villages and towns along the way, but only asked for some supplies.

Da Boluguo is very obedient, basically giving what he wants.

After a rapid march for more than half a month, they finally arrived at the city of Sindo in the small Bolu country.

A hundred years later, during the Tianbao period, the Anxi Protectorate would set up the Tianbao Guiren Army here, which became one of the military towns under the rule of the Tang Dynasty.

Now, this is the capital of Little Boru.

Xiao Boluguo also wanted to cry without tears, and Datang came to beat him violently, and even the country was robbed.

The Tubo people followed and came again, and they were beaten again, fighting back and forth with the Tang army in the territory of Xiaobolu, and the unlucky ones were the locals.

Now that the reinforcements of the Tang Army are coming, the outside of the city has really become a place like purgatory on earth.

There were tens of thousands of Tibetan troops besieging the city of Sindo, and Cheng Biting Jin's department suffered a lot of losses when they crossed the green ridge, and then fought all the way to Xingzai, leaving only eight or nine thousand people who lacked supplies to garrison the city of Sindo.

The most important thing here is the river valley and the high mountains.

Its roads are difficult to travel, and it is difficult to give full play to the advantages of the Tang Army's equipment.

On the contrary, it is here in Tibet, not to mention that he is good at mountain warfare, and he has not been troubled by miasma.

But when reinforcements arrived, it was different.

Li Yunze, who marched along the river valley, stabbed directly into the back of the most empty defense of the Tubo people, and thousands of iron horsemen galloped and charged, destroying the military camp of the Tubo people.

Cheng Yanjin was naturally not idle, and opened the city gate to attack, which can be regarded as relieving the siege of the city.

"You're here!"

Cheng Biting Jin, who was very embarrassed in terms of image, breathed a long sigh of relief when he saw Li Yunze.

"I've been stuck here for months, and all the dogs in the city have been eaten. If you come half a month late..."

Needless to say, Li Yunze motioned to enter the city to speak.

After entering the city, there were not a few locals in the city, and Cheng Yanjin, who was on the side, explained, "When I learned that the bridge was broken, I knew something was wrong." Immediately drove all the people in the city away, leaving only food, and collected a wave outside the city, which can last until now. ”

As for how those people in the city should survive after being driven away, Cheng Yanjin didn't say, and Li Yunze didn't ask.

"It's not like you can't beat it." Cheng Yanjin is still explaining, "Although there are many people in Tubo, the old man is not worried. It's just that the epidemic is rampant in the army, and many soldiers are weak because of miasma, so they can only barely stick to the city and wait for rescue. ”

The average altitude here in the Great and Small Bolu countries is more than 6,000 meters, and even in the river valley area, the average altitude is more than 4,000 meters.

For these Tang troops, most of whom came from the Guanzhong Plain, the impact of the miasma was very serious.

"Didn't you take the pill developed by Sun Daochang?"

"Of course." Cheng Yanjin shook his head again and again, "I just didn't expect it to be so high here, and it has always been so high!" I ate a lot when I crossed the Green Ridge, and I ate it all after I got here. ”

This is cognitively justified.

At this time, Xuanzang had not yet returned to Datang, and the information he collected in the Western Regions and Tianzhu had not yet been known to Datang.

Before Cheng Yanjin set off, he learned that the big and small Bolu countries were all high mountains, and he also brought the medicine that Sun Shenxian used to treat qi miasma.

But I didn't expect that there would be such a high place in this world, and I didn't expect the logistics line to be cut off.

When the medicine is finished, it can only be barely defended the city.

"Trim for a few days." Li Yunze opened his mouth and said, "After the soldiers recover their strength, they will set off immediately. ”

"Go back?"

Cheng Yanjin's expression was gloomy and uncertain, "For the sake of here, thousands of soldiers threw their lives and left like this?" ”

"I'll be back when I'm gone." Li Yunze warned: "This is not the main battlefield here, and the main battle will decide the fate of the country." It's just a remote branch, and I wasn't going to waste my time trying to save you. ”

Li Yunze looked at the mentally exhausted sergeants not far away, "I'm here for them." ”

"The old man can't call the shots in this matter."

Cheng Yanjin simply shook his head, "It is Your Majesty's will to attack the Great and Small Bolu Kingdom, and I have to ask Your Majesty for advice." ”

This was another side effect of the telegraph.

In the past, the battle situation on the front line was naturally decided by the generals who commanded the troops.

But when there was a telegram, Li Er's hand stretched out across thousands of miles.

This is also because Li Er has outstanding ability and is an excellent emperor.

If you change to the emperor who is longer than the hands of the women of the deep palace... I can't imagine it.

But Li Yunze doesn't care, he only does what he wants to do, as for whether the emperor after the Tang Dynasty will become a micro-manipulation master like a certain diary expert, he is too lazy to care.

Li Er's telegram replied extremely quickly and concisely.

The telegram clearly asked Cheng Yanjin to abandon his previous order to attack the Great and Small Bolu Kingdoms and return to Anxi with Li Yunze's reinforcements.

Li Er also specially instructed Cheng to bite the gold and let him discuss with Li Yunze more in case of trouble.

This is a kind of euphemism, which is essentially 'listen to Li Yunze for everything.' ’

saved face for Cheng Yanjin, and he naturally understood it.

Li Yunze brought supplies, especially a large amount of rhodiola saffron and other drugs that are effective for altitude sickness.

Cheng Biting Jin's department, which had been resupplied, gradually regained its strength.

A few days later, the two Tang armies began to pack their bags and set off for their return.

This time, there was no need to make a detour of thousands of miles to return from the Karakoram Pass, and went directly north to the Sualse River, dispersed the Tibetans here, and drove the captives to rebuild a temporary bridge.

Crossing the Suolse River is the Green Ridge, and crossing the Green Ridge and going north for hundreds of miles is Shule.

Cheng Yanjin's expedition to the Great and Small Bolu Kingdom this time was a vain return, but he captured the king of the Little Bolu Kingdom before leaving.

In his words, after running so far and losing so many soldiers, it can't be in vain.

Li Yunze did not object to the capture of the king, so he regarded it as adding a new member to Li Er's King Khan Choir.