The Han Empire also put its own national strength into this war, and many servant armies of the northern grasslands, vassal states of the Western Regions, barbarians of the south, and the Han Dynasty's own tuntian and nomadic armies were called up one after another.

Many local garrison brigades were promoted to the Wehrmacht and pushed into the battlefield, after all, they received military training all year round and had a much better foundation than the newly recruited army.

Huang Zhong, Wei Yan, Li Yan, and these generals who joined the Han Dynasty halfway all led their armies to the battlefield of the Rest Empire.

Many second-generation children, like Gao Qi, also thrived in the war, and division commanders, brigade commanders, and regiment commanders all had their figures.

At this time, the Han Empire's strict military academy education system and recruit training mechanism reflected its superiority, and the newly formed troops still had a high level of tactical literacy, rather than a plate of scattered sand.

Every day, the army of the Han Dynasty rushed from the Central Plains from Guanzhong to the distant battlefield of rest, and every day wounded soldiers and troops with excessive losses returned from overseas.

Horse-drawn carts transporting arms and supplies, as well as food supplies, were carried out via the overland Silk Road.

The Han Empire invested a lot of money, manpower and material resources in the construction of the Silk Road, and built high-grade highways that extended to the Sogdian Governorate.

Also at sea, the Han Imperial Navy set out from Minagara, capturing the famous port of Shroff Harbor of the Rest Empire.

Some supplies can be transported by sea from mainland China to Anxi, mainly arms and other materials that are not afraid of long-distance transportation.

For food and the like, try to collect it locally.

The two sides launched a protracted offensive and defensive battle around the city of Mosul, and the huge casualties made the offensive and defensive battle of Mosul named "Mosul Meat Grinder".

When the Romans were at their worst, Caracalla invested his secret weapon, which was the big guy sent by the Roman Academy of Sciences, which was actually a self-made artillery of the Romans, but in order to increase the range and power, the cannon body was made very long, and the ratio of caliber to cannon body was much larger than that of the Han artillery.

Of course, these are because the metallurgical technology of the Romans is not as good as that of the Han people, and the machine tools and other equipment for processing artillery are far less advanced than those of the Han army, and they can only rely on increasing the size in exchange for performance, which also leads to its great weight and cannot rely on gun trucks to move like the artillery of the Han army.

However, in any case, the addition of these artillery pieces helped the Romans turn the tide of the war, taking the Han Chinese by surprise and losing a lot of men and artillery.

It also increased the difficulty and casualties of the Han army's siege, and the Romans built bunkers for these big guys, formed artillery batteries, and improved their own protective performance.

The two sides were in a stalemate in Mosul for three months, with the Han army and all the allied forces suffering about 200,000 casualties, while the Romans and the Sabbatians and Roman allies suffered only a few more casualties.

In the end, it was the Han army that used the old method to attack behind enemy lines, and the first division of Zhang Xiu and the third division of Wen Ping, plus Wang Quan's special combat division, secretly attacked Antioch, an important town in the eastern province of Rome.

Destroyed a lot of ammunition and supplies hoarded here, and eliminated the two Roman legions that came to reinforce by encircling the point, one regular and one auxiliary.

Fearing that the back route would be cut off, Caracalla decisively ordered the Roman army to withdraw from Mosul and surrender the city of Mosul, which had been defended to the death for three months and suffered numerous casualties, to the Han army.

The Roman army withdrew from the borders of the Rest Empire and retreated to the eastern provinces of Rome.

Without Mosul's obstruction, Ardashir I's Persian army went straight to Armenia controlled by Ardaban IV, without even needing the Han army.

The Sabbatarians have completely lost the help of the Romans, and the Romans are now too busy to take care of themselves, where is there any room to pay attention to the Sabbators?

In Calle, a famous city in the history of the Sabbath Empire, the Sabbatarians defeated 40,000 Roman legionnaires with 20,000 cavalry, the most famous victory in the history of the Sabbath Empire.

And now, the battle that decided the final fate of the Rest Empire happened here by coincidence.

The 60,000 Persian army led by Ardashir I and the 50,000 Sabbatical army led by Ardaban IV met here.

Neither side received assistance from their respective allies, the Romans were overwhelmed and unable to help, while the Han Chinese were denied help by the Persians, who had to rely on their own strength to win the fateful battle.

Both sides were composed of infantry and cavalry, and were also armed with muskets and grenades from the Han Dynasty, and the Persian army was also provided with a small number of mortars.

The two sides went head-to-head, but the thriving Persian army outnumbered the Sabbatarians in morale, and they easily shook the Sabbatarians' line by storming the enemy with the determination to die.

When the timid Sabbatarian turned and fled, it was like dominoes, and the fear of war soon spread among the Sabbatarian army.

The Persian cavalry broke the left flank of the Sabbatarians, and Ardashir I took the lead and led the army straight into the main camp of the Sabbatarians, and Ardaban IV led the way in fleeing.

In the midst of the scuffle, Artaban IV was beheaded by the Persians, the golden crown was captured, and the Persians immediately spread the news of Aldaban IV's death on the battlefield.

Defeated and deprived of their lord, the Sabbatarians completely lost the courage to fight and either fled or surrendered to the Persians.

Ardashir I killed all the Persians who surrendered, leaving not a single prisoner behind, and then the Persian army marched north, sweeping through the entire Armenian and Georgian regions, seizing the last territory of the Sabbatarians.

In less than two years, Ardashir's Persian army had conquered all of the Sabbatical Empire and established a new Persian dynasty that would later be known as the Sassanid Empire.

To distinguish it from the Persian Empire founded by the Achaemenid dynasty, the Persian Empire founded by Ardashir I is often referred to as Sassanid Persia.

Of course, the vast land of the Rest Empire, and the deep-rooted forces that have been formed after ruling for hundreds of years, cannot be replaced and cleaned overnight.

In many of the frontiers of the empire, and in areas where the Anxibatians were strong, various struggles and revolts continued, both loyal to Vologis VI and die-hard loyalists of Artaban IV.

They agreed on the revolt against the Persians, and all the forces against the Persians would unite.

So it was one thing for the Persians to occupy the land, and it was a long project to rule securely in order to take root in the land.

Of course, the Han army, which supported the Persians in coming to power, reaped great benefits, and Ardashir I granted the Han army the right of passage during the war.

Mosul was also leased as a military base to the Han army, which built a huge martyrs' cemetery outside Mosul to commemorate the tens of thousands of soldiers who died in Mosul.

To this end, the Han army established the second cemetery garrison force in military history, the Mosul Cemetery Guard Regiment, which will be stationed in Mosul all year round to protect the martyrs' cemetery of the Han army.