After deciding to name this concrete line of defense "Mano Line", Marin's heart became very unsteady. Because he always remembered that the French "Maginot Line" was bypassed by the German army. Probably, this "Mano Line" will also be bypassed by the Turks.

In order not to make such a major mistake, Marin spread out the map and studied the local terrain......

After much deliberation, Marin believed that it was unlikely that the Turkish army would bypass the narrow coastal plains. Because, the Lebanese coastal plain is too narrow for tens of thousands of troops to pass through. And if there are fewer troops passing through, they can also break through the defensive line.

However, Marin suddenly noticed a problem - it seems that the threat at sea is not small......

The Lebanese coastal plain is not suitable for large armies to pass through, but the Turks can occupy Haifa by sea and then attack behind the defensive line through the port of Haifa......

Although the defensive line was made of concrete and difficult to penetrate, the Turks could also change the tide of the battle if they cut off the food supply to the defense line and besiege it.

"It seems that the safety of the port of Haifa is very important......" Marin tapped his finger on his desk and began to think about countermeasures.

It is impossible to send troops to garrison Haifa on your own. After all, if there is less garrison in Haifa Port, it will not be used, and if it is more, the expenses will be very large......

As for allowing Egypt to garrison its own troops, it is also feasible. However, because of this fiasco, the loss of the rich Syrian region, and the financial difficulties of the Mamluk dynasty in Egypt, it is estimated that there is not much money to feed too many troops. Therefore, even if the port of Haifa is rebuilt, Egypt will not garrison too many troops. No way, since the spice trade was cut off by the Portuguese and the Spaniards, the Mamluk dynasty of Egypt was poor and could not afford much military spending.

"The question of money...... Well? It seems that the Venetians are rich......" Marin's eyes lit up.

Although Venice was devastated by the robbery of the spice trade, the emaciated camel was bigger than the horse, and the people had a thick foundation. Marin remembers that in the late 16th century (probably around 1580), Venice had an annual revenue of 18 million ducats......

Of course, that was after the massive inflow of gold and silver from the Americas into Europe, which had already depreciated significantly. In addition, the rise of the Venetians has a lot to do with the appearance of glass mirrors.

The Venetians also paid attention to the secrecy of their technology, and moved all their craftsmen to the island of Murano, ensuring that the glass mirror technology was not leaked for more than 150 years.

But there is a loophole in Venice's conservation measures, which is that Venice only moved the craftsmen who made the glass mirrors to the island of Murano, and did not move the craftsmen's families......

So, more than 150 years later, around 1666, the French took advantage of the fact that the artisans left Murano to return home with their families on major festivals, recruited a group of artisans at a high price, and stole the secrets of the glass mirror.

Then, Venice was out of luck......

Originally, a glass mirror Venetian could be sold for tens of thousands of francs (in this era it was called Livre). The side given to the Queen of France was actually worth 150,000 francs......

And after the French stole the technology, they began mass production of glass mirrors, and the price plummeted to 100 francs a glass mirror......

After the loss of this technology, the Republic of Venice was considered to be in complete decline. And then, there was no more day of coming forth, until it perished......

……

At the moment, Venice is starting to go downhill. However, the strong family foundation is still there. Plus I hope to turn over with the help of the Suez Canal, so it's quite tough.

"That's not right! According to the original history, glass mirrors should have appeared during this time period, right? Marin remembers that the Venetian mirror appeared at the beginning of the 16th century. It perfectly solved the problem of the loss of the spice trade of the Republic of Venice, and allowed the Republic of Venice to maintain its commercial advantage for a long time, until the French stole the technology to make glass mirrors, which caused the commercial edifice of the Republic of Venice to collapse. After all, a mirror of 10,000 livres is not too cool to sell. Although the value of the livre was seriously depreciated at that time, it was almost 12 livres for 1 pound sterling or 1 gold louis.

In other words, a Venetian mirror can be sold for 833.3 pounds, which is equivalent to 1666.6 gold coins......

It is said that the French later sold a glass mirror for 100 livres and made a lot of money. 100 livres, on the other hand, is about 16.66 gold......

But in reality, a glass mirror coated with mercury and tin foil will definitely cost no more than 1 gold coin. In other words, even if it is sold for 100 livres, the French will have more than ten times the profit. And before, the Venice of monopoly technology, that profit ...... Nima! A thousand, hundreds of times!

Marin was stunned - what kind of profiteering is this? No wonder the Venetians want to trap artisans on the island of Murano! No wonder the French tried everything to get their hands on the technology for the production of glass mirrors......

"Shall I get a glass mirror out now to make money?" Marin began to think......

After thinking about it, Marin still didn't dare to ......

Why? He has not yet defeated the French, and at this time, it is important not to be high-profile. If the French were to be turned into a desperate gamble and an army of more than 100,000 or 200,000 people would be mobilized, Marin would have no choice but to flee to the Americas with his family......

After all, the French were jealous of Venice's red eyes in history, and if Marin had made a glass mirror too soon, he would have been red-eyed. Stimulated by huge profits, the French may go berserk and do whatever it takes......

After thinking about it, Marin still decided - after defeating the French and establishing his power, he would take the opportunity to push out the glass mirror, and then circle the money in a big way, counting the gold coins until his hands cramped......

……

However, when the world was unpredictable and Marin was still dreaming of monopolizing the glass mirror business, there was shocking news from Venice - the Venetians had withdrawn from the glass mirror......

"What? The Venetians have already made the glass shocked? Marin's mouth grew in surprise, and what he was in his hand fell to the ground and shattered......

This broken wine glass is like Marin's heart—it's also broken......

A thousand, hundreds of times the profit! That's it......

Marin was so depressed that she wanted to vomit blood......

But Marin didn't know that the Venetian glass mirror was actually invented by the Dalcaro brothers in 1507 and quickly became the most powerful weapon for Venice's resurgence.

However, Marin's crossing changed history. Among them, Marin's biggest change in history was that he once hired a large number of glass craftsmen in Venice to the North Sea Kingdom.

It was when Marin had just taken East Friesland, and in order to produce glass products for foreign trade, Marin sent people to Venice many times to recruit glass craftsmen, and recruited hundreds of people in total.

It was this action that changed history. Because the factory where the Dalkaro brothers worked had recruited many craftsmen, its managers put a burden on the Dalkaro brothers and made them busier. After all, there are not enough people, so the remaining craftsmen can only be used as two people......

As a result, the two brothers worked harder. In 1507, I was too busy with work to study the glass mirror as I had done in history.

But as time went on, a new batch of apprentices (seven-year apprenticeships) from the Venetian glassworks were brought out, and established glassmakers like the Dalcarlo brothers had more time to do something else.

Then, in the spring of this year, the Dalcaro brothers finally inadvertently developed a glass mirror with mercury tinned foil......

Immediately after that, the two brothers were regarded as national treasures by the Venetian authorities, and their salaries were greatly increased, but they also lost their freedom - they were confined to the island of Murano.

After months of preparation, the Venetians finally decided to release the news after making a batch of glass mirrors. At the same time, invite some wealthy nobles and bigwigs to Venice to participate in the auction. And Marin, as the top diamond king in Europe, naturally received an invitation......