The climate of the subcontinent is very suitable for the use of troops in winter, not very high temperatures, and also not a lot of rain. And the military rations will not only be self-sufficient by capturing, but will even have a surplus.

In just one winter, the Shenwu Army had already accomplished what the Sun Ring King had failed to achieve in his heyday.

Zhang Yuanzuo crossed the Nabada River under the guidance of Orissa and other Tianzhu generals.

More than 100 years ago, King Jieri launched an attack on the Chalouchi dynasty south of the Nabada River, but was unfortunately defeated. Since then, the southern boundaries of the Ring Sun Dynasty have been limited to this river in the middle of the South Asian subcontinent.

The Jieri Dynasty, which unified Northern Tianzhu, did not last, and after the death of the Jieri King, the entire dynasty fell into civil strife and strife, and finally collapsed with the usurpation of the throne of the prime minister Alonashun.

Since then, the entire Northern Tianzhu has fallen into a chaotic situation in which the various princely states attack each other, and no one has the ability to unify it.

A partial division of the Shenwu Army swept across the entire Northern Tianzhu like an autumn wind sweeping away the leaves, and even the people of Sha Louqi, who had caused the King of the Ring Sun to suffer a crushing defeat, could not resist this fierce army.

By February, Zhang Yuanzuo's army had defeated a 20,000-strong army of Chalouqi and advanced to the south of the Nabada River.

There, the greatest enemy of the mighty armies of the north was no longer the armies of the Chalou dynasty, but the heat and rain.

Fortunately, the rainy season has not yet arrived, and the Persian soldiers and the Tianzhu troops who surrendered to the Tang Dynasty have also arrived at the line of the Nabada River one after another.

Seeing that the battle was about to be decided, Zhang Yuanzuo received an order to retreat.

An order to transfer troops was placed in front of him, Zhang Yuanzuo was in a dilemma, seeing that he was about to fight and did everything, but now he had to evacuate, those Persian soldiers and Tianzhu soldiers lost the backbone of the Shenwu army, can they successfully conquer the Shalou Dynasty?

However, in the Shenwu Army, the military order is as big as a mountain, even if he is unwilling, he can only receive orders.

Although most of the divisions were to be evacuated, he still left a force of about 1,000 men as the backbone to support the Persian and Tianzhu troops in the military operations south of the Nabada River.

In the South Asian subcontinent, the co-subordinate troops belonging to the Shenwu Army included the authentic Persian soldiers of Kusilao, and the Persian soldiers who believed in the Great Food Sect led by Abu, among which most of the Tianzhu troops were the subordinates of the general Orissa.

Although he failed to become the king of Gantuo, he became one of the first non-Tang governors appointed by the Tang Dynasty outside the mainland.

In addition, the Bahana from the Transoxiana region also gained a place in the conquest of Tianzhu.

Since these four armies became the auxiliary army of the Shenwu Army, their combat effectiveness has also exploded unprecedentedly, and none of them have encountered opponents, and their only defeat was made by Orissa.

Of course, it was also a carelessness after complacency, and immediately, Orissa reorganized his superior forces and swept away the enemies who stood in the way of the south.

The spring breeze in March has the earthy smell of dry sand, Qin Jin touched the back of his rough and dry hand, presumably Chang'an should be like spring rain like oil at this moment, and the willow is pulling branches.

In this moment's trance, he regained his demeanor, and the battle against Mulu City was about to come. Abbas, the governor of Khorasan, seemed to be ready for a decisive battle, and he bowed his head to Caliph al-Mansur in Ctesiphon for help.

Although Mansour's military focus was on the Roman Empire in the west, he could not tolerate the presence of bandits in Khorasan, the hinterland of the Great Diet.

Moreover, it was the Tang people who made waves of Da Shi's former subordinates.

It's a pity that Mu Slim, who defeated the Tang people back then, was executed, if this person is still alive, I am afraid that he can integrate those stupid steppe barbarians with only a few thousand people and defeat the Tang people again.

Abbas's request for help was urgent and earnest, and as the most powerful man in the land, Mansour looked condescendingly at the messenger who delivered the letter on his cousin's behalf.

The messenger was a stranger, but his gestures revealed that he was a man who had seen so much of the world, and that no one could do it without changing his face in the presence of the great caliph!

In the empire, even the bravest general, even if he kills people, will be like a trembling mouse when he comes to the great caliph.

However, al-Mansur, as a caliph with an empire in mind, appreciated the "rudeness" of the envoy, and carefully inquired about the origin of the other party, only to find that the envoy of his cousin was actually a merchant.

As we all know, Abbas, as one of the most powerful people in the empire, has always been hostile to merchants, and the attack on merchants has never stopped for a moment.

Many of the tribal chiefs of the Hashemite family had complained to al-Mansur that Abbas's ruthless attack on the merchant states had caused their caravan income to drop year by year, hoping that al-Mansur would intervene in the name of the caliphate.

To this end, the tribal chiefs sent mountains of treasures, gold and silver, so that the caliph would rule for them.

Mansour, though, is not a man who is tempted for petty gains.

Treasures and gold and silver were still being collected, but it was not now time to change Abbas's strategy of suppressing trade between East and West.

The empire was mobilizing against the Roman Empire in the west, and before it could conquer Asia Minor, it needed an iron-fisted governor like Abbas with royal background and outstanding ability to stabilize the lands in the east.

Khorasan provided the empire with a large amount of food every year, and there was absolutely no room for error.

Sa'id glanced at the high caliph, this was the first time he had seen the caliph, Mansur was much younger than he had imagined, he looked only about thirty years old, but in fact he was almost fifty people.

He was commissioned by Abbas to ask al-Mansur for help, hoping to get the aid of the country's elite warriors.

The fact that the elder Abbas was a man of great conceit, and that he was now able to put down his body and ask his cousin for help, showed that his situation had reached a precarious level.

The reuse and sending a merchant to ask al-Mansur for help was the circumstantial evidence that he had no choice but to change his strategy.

Of course, Abbas did not have many allies within Ctesiphon's court, and many were even happy to see the domineering governor in an embarrassment.

But this is not what al-Mansur would like to see.

"Mahdi, what do you think we should do with those impolite guys?"

Mansour behaved very kindly in front of his youngest son, and even referred to the intruder as "impolite". But everyone saw the anger and cruelty in the fiery torch-like, eagle-sharp eyes of the caliph.

Mahdi was not the youngest son of al-Mansour, and sixteen younger brothers were followed by him, but unfortunately none of them died of adulthood.

For this reason, the caliph was particularly fond of this young son, who had grown into adulthood

"If you treat an impolite guy, you should greet them with shoes and a leather whip!"