The Byzantine navy was divided into field armies and local garrisons, and the local garrisons were divided into one military district with six garrison areas, and each garrison area also had a number of garrison divisions, which were responsible for the maritime garrison of each region.

The field army was divided into two major fleets, the Southern Fleet was stationed in the Mediterranean, and the Northern Fleet was stationed on the northern side of the Aegean Sea. In addition to this, a fleet of naval commanders under the command was stationed in Constantinople. These three fleets were the main combat forces of the Roman navy.

Huni came to the naval headquarters and reported to Grand Duke Stefan, who arranged for him to serve as a vice admiral in the sea training superintendent.

Huni's identity was originally equivalent to the deputy chief of staff of the Navy Command, and the Naval Training Superintendent was only a department under the General Staff, and the arrangement of this position was obviously lower, but Huney was not frustrated, because as Grand Duke Stefan said, he did not know enough about the situation in the navy, and he had to go down to experience it before he could be qualified for a higher position. So, he went to report to the Hai Xun Jian in high spirits.

On the first day of his arrival, Huni couldn't wait to come to the harbor of the fleet under his command, he came to the shore, and when he looked up, under the blue sky and white clouds, he saw huge warships moored in the harbor.

Such a battleship is called a raven ship. On the high bow of the ship, there is a huge iron hook that can be moved, and the purpose of the iron hook is to hook the enemy ship at sea, so that the soldiers can board the enemy ship and fight the opponent hand-to-hand. Because the iron hook resembles a crow's beak, it is called a crow boat.

Huni jumped into the transport boat, and the six soldiers rowed the dinghy and headed forward.

As the distance approached, Huni was shocked by the tall warship in front of him, the raven ship in front of him, one of the largest warships in the Roman navy, with two masts, the length of the hull was about 12 zhang, and the middle of the ship had two decks, which could carry nearly two hundred soldiers at most.

In this era, the shipbuilding technology of the whole world was relatively backward, and the warships of more than ten zhang long belonged to the limit of the size of the ships. This is mainly due to the fact that the sea surface is very windy and rough, and the keel of a ship of this size cannot withstand strong twisting and shaking, and it is easy to fall apart.

The reason why Li You was able to build such a huge battleship as the sail battleship was that it was only possible to achieve it by using shipbuilding technology that surpassed this era for nearly a thousand years.

The Romans' warships were the largest warships of this era, and also because of their geographical location, the Mediterranean Sea is an inland sea, and most of the time the wind and waves are light, otherwise, the same warships would not be able to adapt if they were placed in other seas.

In this era, there was no large ocean-going fleet, and there was no large-scale maritime transportation, which was the main reason for the relative backwardness of maritime trade.

Huni came to the bottom of the ship and climbed up the soft ladder that had been set up above.

It was the first time Huni had boarded such a battleship, and he felt very fresh. He was running around the boat, touching everything with his own hands and looking at it.

Finally, he came to the stone thrower in the bow of the ship, which was about two zhang high, and could fire about ten catties of stone bullets to 100 paces away, and could also fire clay pots filled with Greek fire, which had great lethality. On this battleship, a total of four such catapults were equipped.

Huni climbed the mast and looked down on the vast sea, and when he saw the other warships moored on the sea, he had a feeling of seeing the mountains at a glance, and the thought of being able to command such a warship to fight the enemy army filled Huni's heart with the pride of battle.

There is another person who has the same feeling as Huni, and he is Ma Yinuo, the liaison officer of the Great Food Navy. He had seen the battleships of the Roman Navy, and he was shocked by the huge body at that time, and at this moment, he stood on the tall ironclad ship of the Tang Army, and felt that the crow ship of the Romans that had shocked him was just a small toy compared to the ironclad ship.

Ma Yinuo was looking forward to seeing the shocked look on the Romans' faces when they saw the Tang Army's warships.

However, Li You is not as optimistic as Ma Yinuo.

The crow ships of the Romans were not completely driven by the wind, and 32 pairs of oars were installed under the ship, which could be driven by manpower when there was no wind, while the sail battleships of the Tang Army were completely driven by sails, and were in a special geographical environment such as the Mediterranean.

Li You introduced the special geographical environment of the Mediterranean Sea to Liu Renliang and other naval generals, which attracted the attention of all the generals, and the Tang army trained while walking, and was not in a hurry to attack the Romans.

Damascus.

Umar is 30 years old this year, and he has become a big man, and the affluent life by Li You's side has made him a little blessed, and his lower abdomen is slightly bulging.

Today's Umar has married the daughter of a fourth-grade official in Chang'an, and his small life is very nourishing. However, in his mind, there will still be the shadow of the lover in his dreams.

This time, Umar followed Wang Xuance to Damascus, hoping to have the opportunity to return to his hometown to have a look, but unfortunately he never found the opportunity.

On this day, King Xuan Ce summoned Umar and assigned him an important task to lead people to Constantinople.

Wang Xuance gave him three tasks.

The first task was to get in touch with the left-behind personnel of the Tang Dynasty trading company in Constantinople, grasp the situation of Wang Huili and others, and prepare for the assault team to go to the rescue.

The second task was to gather military intelligence on the Romans, especially the hydrology of the Mediterranean and Aegean Seas.

The third task was to learn about the origin of the Greek fire, as well as the storage warehouse.

Umar has been pampered by Li You's side and has been doing nothing, and now he finally has a place to use, and he can't help but be very happy.

Soon he led a team of a dozen cannibals, familiar with the official language of Rome, carrying a radio station, to Constantinople.

In the evening of that day, Umar and the others came to the border.

There is a long border between Dashi and Rome, in many areas, the people on both sides of the border line have the same clan and clan, speak the same language, and people-to-people exchanges are still very frequent, especially as long as the merchants pay a certain toll, the garrisons at both ends of the border line are blind and blind.

With the help of the local garrison of Dashi, Umar and the others successfully crossed the border and entered Roman territory.

Constantinople.

After the trading company in the Tang Dynasty was seized by the local government, Li Xiaobao and others hid in a shop opened by Persians, and through the Persians, they helped them inquire about Wang Huili and others.

On this day, an Egyptian caravan came to the trading house of the Persians, and they quietly inquired about Li Xiaobao's whereabouts.