With the fall of Fort Adriana, marking the complete defeat of the Roman Empire in the eastern provinces, the entire Eastern Legion entered prisoner of war camps, and the two commanders, Lucis and Marcus, became prisoners.

The combined forces of Han and Persia soon swept across the Greek peninsula, capturing Macedonia, Thrace, Mercia, Dacia and many other Roman provinces.

Subsequently, the coalition forces marched northwest, entered the province of Dalmatia, and captured the seaport city of Salone.

The Han navy led by Lu Su also entered this sea, and they blocked the ports of Taranto and Brindisi, trapping the Roman navy in the harbor.

The news of Lucis' defeat, the capture of 200,000 Roman legions, and the death of 100,000 returned to Rome, and the entire city of Rome was boiling.

The senators of the Senate are shouting, this is a war to destroy the country, and all the people must be soldiers.

The emperor of the Roman Empire, Caracalla, had long wanted to promote the whole people to be soldiers, but he was suppressed by the Senate.

Now that more than 300,000 troops of the huge Eastern Army have been wiped out by the combined forces of the Han and Persia, how can the Western Army alone withstand the offensive of the combined forces?

With the Senate agreeing, Caracalla immediately ordered the adoption of a military force in all provinces that were still under the control of the Roman Empire.

All veterans who had served in the army were conscripted, the age of young men was relaxed to sixteen, and all Roman men of all adult age, whether citizens, slaves or barbarians, were conscripted into the army.

Millions of armies were drafted up, large stocks of weapons were distributed to the public, and when bronze weapons were scarce, sharpened sticks were issued instead.

A large number of veterans over the age of 40 were re-drafted, most of them extremely experienced veterans who had completed 20 years of service, and although their physical fitness had declined, their combat skills and tactical literacy were extremely high.

All the arsenals were also in a state of production frenzy, and this time, all the citizens of Rome donated all the metal objects in their homes, and all the metal statues of the temple were also donated.

If you can't make a musket, you can make a lot of bronze weapons and create a large number of large shields to offset the advantages of muskets.

In December 220, the coalition forces finally entered mainland Italy and besieged the northern stronghold of Midianum, but also met with stubborn resistance, where a reserve of 100,000 Romans was assembled.

The Romans, who were also experienced in warfare, knew that they did not have an advantage in firearms, so they turned to night raids.

They were specially dispatched at night, taking advantage of the poor visibility and the difficulty of using firearms, to launch a surprise attack and engage the Han army in hand-to-hand combat.

On the long supply line, a large number of Roman reservists were infested, and they specialized in sneaking up on the logistics and supply of the Han army, raiding and harassing strongholds along the road, and conducting guerrilla warfare.

The Romans also recruited a large number of barbarians to join the army in their northern provinces, replenished their troops, and reached an armistice agreement with the barbarians in the north, and even bribed the northern barbarians to directly send troops to the war to help them deal with the coalition army.

Therefore, many times, the coalition forces had to face the elusive barbarian army, and the barbarian army had formed its own set of effective guerrilla warfare methods in the long-term battle with the regular army of the Roman Empire.

Now they used the guerrilla tactics against the Romans against the combined forces of the Han and Persia and were also very effective.

In order to ensure the smooth flow of long logistical supply lines, especially the Han army, a highly firearmized army, which relied more heavily on logistical supplies, in addition to special logistical supply and transportation troops, they also sent a lot of patrol detachments to station along the line for protection.

Of course, most of these armies were Persians with low combat strength or servant armies from Central Asia and the Western Regions, and better yet, the local garrison brigades of the Han army.

Compared with the Romans and barbarian armies, these second-line armies do not have any advantages, and everyone is also dominated by cold weapons, and only the Han army has more firearms.

In the competition of cold weapons, the Romans mainly attacked by sneak attacks, but most of the time they had the upper hand.

The forced coalition forces had to send in regular troops to clear the enemy near the supply lines, but in the enemy's territory, they were the invaders, and they did not receive any help from the local people.

The lack of information and intelligence made it difficult for them to clean up the Roman and barbarian armies in a timely and effective manner.

This situation even forced the main army under the command of Lu Bu to speed up the process and achieve the strategic goal at an early date.

After the coalition forces entered the Italian mainland, they needed to capture city by city and then advance.

Patavium, Ravana, Florence, every Roman city will need to be fiercely contested before it can be conquered.

Roman legions had been deployed in each of the cities, and the Romans were at their most passionate defending their homeland.

Moreover, after the coalition captured every Roman city, it was necessary to leave a force to defend the city, mainly to ensure the smooth flow of their own logistics and supplies.

The changes in the battle situation and the use of troops have gone beyond Lu Bu's original plan, after all, no matter how meticulous and ingenious the war games are, they can't predict all the things that may happen in reality.

Both the Han army and the army of the Persian Empire were forced to increase their troops for the second time, the Han army increased the army of at least ten divisions, and Persia also requisitioned 100,000 troops.

Many of the allied troops of the Han army, the Western Regions Protectorate, and the Beiting Protectorate were also transferred to the west, and the Persian Empire also transferred garrisons from many local provinces.

The consequence of this operation was that there was some instability in the rear, especially in many provinces of the Persian Empire, which had just been conquered by force for a short time.

At present, the greatest deterrent force is that the provincial garrisons have been transferred, leaving only a small number of local security forces, which can no longer deter the undercurrent underground.

Riots and uprisings occurred in many provinces of the Persian Empire, and many forces from the previous dynasties rose to prominence, such as die-hard members of the former Resting Empire, local powers of the Roman Empire, and so on.

Even the Han Empire, which had ruled for a relatively long time and had a relatively stable dominant position, had some changes in some areas, especially instigated by separatists from abroad.

At this time, Lu Bu had some of the feeling that it was difficult to ride a tiger.

But the city of Rome is in front of him, and if he doesn't enter the city of Rome, Lu Bu feels that everything is illusory.

After the capture of Florence, there was only one city left between the coalition and the city of Rome, and that was Assision.

The Romans were still holding out on to Assision, where they gathered more than 100,000 Roman legions to defend Rome, which had not fallen.

Although the siege methods of the Han army were simple and effective, they were extremely expensive, whether it was the consumption of manpower or explosives.