Since he commanded the first operation, Zhao Hao has already discovered that in ancient times, when "transportation basically depended on walking, and communication basically relied on roaring," it was very difficult to effectively command the "large corps" on the battlefield. He also found that the various flags used by the various departments were not for the sake of beauty and prestige, but for the purpose of being able to effectively command the battle, in addition to the golden drum, another important instant communication tool.

In ancient times, the Chinese army used the liaison flag to direct the whole army to march and hurry, and the main general gave orders under the banner of the teeth, and the generals of each department waved the general flag after receiving the order to order the soldiers to prepare for the attack, and the soldiers charged and killed the enemy under the leadership of the banner:

Liaison flags are used to connect the front army with the rear army while marching. In ancient times, because of the belief in the Five Elements Theory, the color of the liaison flag was different. Cyan, wood, if the vanguard encounters a mountain forest obstacle and needs to open the way, it will raise the green flag. Red, belonging to fire, if the army encounters dangerous terrain, mountains and valleys, it needs to prevent the enemy's fire attack, raise a red flag to warn.

White, belonging to gold, once encountering enemy soldiers, it is necessary to quickly gather troops, set up a formation to meet the battle, and raise the white flag as an order, and the white flag indicates that surrender is actually a concept after modern times, and more often means a truce. Black, water, if there is a swamp or a stream on the marching route, a black flag will be raised. Yellow, belonging to the soil, if the front of a horse is flat, unimpeded, raise the yellow flag to sign.

The flag is used by the commander to give military orders, and when the army charges, the soldiers rush to where the flag is. The commanding generals can judge the progress of the advance of the battle line according to the direction of the flag, and can clearly see the results of the battle and the battle losses of the army. Some flags are embroidered with the national name, which can allow soldiers to distinguish friend from foe by the color of the flag during a melee, so as not to accidentally injure friendly soldiers.

Because the flag can be carried in large quantities, it can be used to show that there are many generals on your side, and the momentum of waving it is like a rainbow, which can boost morale. This also gave the commander room to use the strategy, by increasing or decreasing the flag to confuse the enemy, Han Xin in the last battle, he led 2,000 cavalry with red flags all over the Zhao army camp, causing the enemy army to mistakenly think that the camp was ended, the whole army was defeated.

In the long-term practice of warfare, the ancients were inspired by astronomical phenomena and combined with the five elements to find a set of methods for marching and arranging formations, and invented the "Five Elements Formation". It contains the basic understanding of the ancestors of celestial phenomena, geography, and cosmic space, and the array flag is the core and soul of the formation: the green dragon and the white tiger are in the four directions, and the vermilion bird Xuanwu is shun yin and yang. It is advisable to use the red bird before the army; After the army, it is appropriate to use Xuanwu; The left side of the army is yang, and the left is green dragon; The right side of the army is yin, and the right is a white tiger. In later generations, many formations and flags were developed on this basis, and then the concepts of five colors and five flags were integrated, and the changes were endless.

On the battlefield, the army is generally divided into five battalions, namely the front battalion, the middle battalion, the rear battalion, the left battalion, the right battalion, and the general flag represents the generals of each battalion, they are under the general flag, and under normal circumstances, the general will not give up the command to charge and kill the enemy, otherwise chaos will occur. As soon as the general waves the flag of his faction, the soldiers will immediately prepare to meet the battle, and the soldiers will fight to defend the flag to the death, once the flag is cut, the army will cease to exist.

The flag is divided into five colors: red, yellow, blue, white, and black, each with its own attributes. The direction facing is the front, that is, the south, the five elements belong to fire, and the fire is red, so the front camp uses a red flag; The place where the foot stands is the center, that is, the five elements belong to the soil, and the soil is yellow, so the middle camp uses a yellow flag; The direction of the left hand is the east, the five elements belong to wood, and the color of the wood belongs to green, so the left camp uses a blue flag; The right hand direction is the west, the five elements belong to gold, and the color of gold is white, so the right camp uses a white flag; The direction of the back of the face is the back, that is, the north, and the five lines are water, and the color of the water is black, so the rear camp uses a black flag.

The one who has the tooth flag, the general's hand. Because the ancients came out of the Son of Heaven, built a big tooth flag, and the pole was decorated with ivory, so the cloud ivory flag. The tooth flag is the largest in the army in terms of size and importance, and the ancient expedition sacrifice flag is the tooth flag of sacrifice. In ancient times, there was no unified system for the tooth flag, and it was generally embroidered with the name of the commander, such as the "Yue" flag of the Yue family's army. When fighting, where the tooth flag is, it means that the commander is there, and once the tooth flag is destroyed, it means that the commander is killed and the whole army will collapse.

After going through several experiences, Zhao Yu knew that under the command of the banner, the army could be disciplined, conduct operations in an orderly manner, and exert strong combat effectiveness. Therefore, he regarded the 'general command' as one of the iron laws, and after mastering all of them, he continued to improve them, and added new communication tools such as passwords, military horns, and lights.

At the time of the infantry army, Zhao Yu generally took the division as an independent combat unit, the battalion as the basic combat unit, and the capital as the basic combat unit, so the three levels all had flags, and they were distinguished by color and size, and theoretically realized the direct command of the division on the battlefield. His biggest improvement was the compilation of flags, lanterns and trumpet scores, which made it possible to communicate easily over long distances.

Don't underestimate this improvement, flag language communication and light communication have the biggest characteristics that can not be replaced by any other communication method, that is, the equipment is simple, easy to operate, highly confidential and has strong vitality. Although the distance is relatively close, it can basically ensure the confidentiality of the communication, and is especially suitable for command and communication within the formation.

Of course, it is not easy to create this set of communication methods, and the set that I have mastered in my previous life cannot be copied. This is because the modern light flag language is to type the corresponding letters and the internationally accepted Morse code through various prescribed postures, and use the Chinese pinyin words to complete the information transmission. The difficulty is that there is no such thing as Chinese pinyin, let alone pinyin alphabet.

In ancient times, literacy was to use the method of straight pronunciation or reverse cutting to phonetize Chinese characters. Straight sound, that is, the pronunciation of Chinese characters is indicated with homophones, if the homophones are all rare words, even if the pronunciation is noted, it cannot be read. Reverse cut, that is, two Chinese characters are used to phonetize another Chinese character, the reverse cut is the same as the initials of the noted word, and the reverse cut is the same as the finals and tone of the noted word.

In addition, it is impossible to introduce pinyin, the pinyin used in modern times comes from Mandarin, but the current official dialect is barely regarded as ancient Mandarin, and the previous dynasties mostly used the language of the capital as the official dialect, so there was no basis for the formation of standard official dialect. The official dialect of the Great Song Dynasty is Kaifeng dialect, and it is still the case after the southern crossing, but the modern pinyin cannot spell the Henan dialect, which also breaks the idea of Zhao Yu's 'cottage'.

However, Zhao also knows that there are 'five strokes' to learn from in modern times, which are encoded by pre-set strokes and matched with corresponding gestures to convey information, and the flag bearer can decipher the content of the flag through pre-programmed codes. In addition, at night, it is possible to express a variety of meanings by hoisting a single flag, two or more flags, or lanterns.

Of course, these recruits cannot be expected to fully understand the use of these golden drum banners, but they must understand the most basic commands, be able to master the battalion flags, and further learn more complex content in the later days of service. Now Zhao Yu watched with great interest as these recruits advanced and retreated under the orders of the sect leaders, arranging different formations, because the time was still short, the movements were inevitably jerky and even chaotic, but the sticks in the hands of the head and the gang leaders would soon make them remember for a long time, which reminded him of the past, and he couldn't help but smile......

"Your Majesty, Zhao Mengjin of the Jiangdong System and Placement Division, Dong Yicheng, the commander of the First Water Division, Chen Fenglin, the commander of the First Army of the Infantry Army, and other officials have come to see you!" At this time, Zheng Yong got on the boat and said.

"Well, what are they doing here? Let's wait! Zhao Yu was disturbed, frowned and said with some displeasure.

"Your Majesty came to inspect, how could they, the feudal lords, not come, otherwise wouldn't it be rude!" Zheng Yong said with a smile.

"It's you who realized the announcement again, so that not to mention the loss of money and labor, you will also make preparations in advance, and I can't see the real situation." Zhao Yu nodded at Zheng Yongyan and said.

"Your Majesty has wronged his subordinates, and no one knows the Sheji number from the government and the opposition, and he wants to be discovered and reported by the warships patrolling the sea before he docks at the port, and he can't hide it if he wants to!" Zheng Yong heard it, but he shouted.

"So I'm going to change ships, lest they find out where I'm going!" Zhao Yu said with a deep sigh. Think about what he said is true, don't say out of Beijing first, I don't know how many people are staring at him when he is out of the palace, and some time ago, he often went out of the palace to 'visit' those ministers and caused trouble. It is said that some officials in Beijing are afraid that they will come to the door, and they dare not take off their court clothes when they return home, lest they be caught by surprise, while some will send people to wait in front of the palace to monitor their whereabouts and provide early warning.

"Your Majesty, should those new warships in the dock be given priority to our Imperial Navy?" Zheng Yong's eyes lit up when he heard this.

In fact, he also felt that it was time for His Majesty's imperial ship to be replaced, you must know that the Sheji was put into use as a handsome ship by Jia Nidao, which can be said to be the owner of the three changes and has become the little emperor's car for more than ten years. Although this ship spared no cost of materials and solid workmanship, it also experienced several major battles such as the Battle of Jiaoshan, the Battle of Qizhou Ocean and the Battle of Yashan, and such as the attack on Quanzhou, Guangzhou, the defense of Qiongzhou and the water battles to recover Jiangnan, the Sheji not only participated as a handsome ship, but also participated in the battle as a capital ship.

In addition, as the chief imperial ship, Sheji is the first choice for the little emperor to travel, and the sailing rate is the highest. Although it is refurbished and maintained every year, it is already an old ship after all, and the newly built large warships are distributed to all departments of the navy, and the imperial ship has not been replaced. Therefore, Zheng Yong thought that he could take the opportunity of this trial production of a new ship to be able to change clothes, not only out of vanity, but also out of consideration for the safety of the little emperor.

"Hmph, think about it beautifully, although this ship is a little old, but it has not reached the point of being unusable, and I already have feelings for him, even Dabai is reluctant to leave, right? Let's eat! Zhao Yu said as he bent down to pick up the big white cat that ran to the roof of the cabin, and gently stroked its head and said.

"Alas, the subordinates knew that His Majesty would say so!" The smile on Zheng Yong's face disappeared immediately, but he didn't dare to complain, so he could only stare at the old cat in His Majesty's arms with hatred and said in frustration. Speaking of which, this cat has been on the ship for a few months to take on the responsibility of removing the rat infestation, and has become the pet of the little emperor on the ship, but now this old cat has shown the appearance of an old dragon clock, and its task of catching rats has long been taken over by its great-grandson, and now it seems that it will also die of old age on the Sheji.

"I know that he is still asking nonsense, we have to use it to make money after building a new ship, and only after earning money can we build a new ship, so that we can have fish and meat to eat every day!" Zhao Yu glanced at Zheng Yong, lowered his head and touched the old cat in his arms as he walked.

"Your Majesty, then let your subordinates escort the fleet to the South Seas this time!" Zheng Yong's eyes lit up when he heard this, and he chased after him and recommended himself.

"When you go out, your heart will be wild. This escort mission has been handed over to the Third Water Division, so you can stay in Beijing honestly! Zhao Yu didn't reply.

"Your Majesty, my subordinates have already been there and are familiar with the situation there, so it's better for me to go!" Zheng Yong continued without giving up.

"Okay, going to sea is indispensable, although those new ships can't be used as my seat ships, they are still allocated to the Imperial Navy!" Seeing his appearance, Zhao Yu knew that Zheng Yong was thinking about the new ships, and he said a little funny.

"Really, let Zhang Zizhen go!" Zheng Yong was pleasantly surprised.

"Although these ships are in the Imperial Navy, they have to be allocated to the Bureau, so you have to cooperate well!" Zhao Yu twisted his face and said.

"This ...... After talking for a long time, it turned out that we were being coolies again! Zheng Yong was stunned and muttered.

"Since you don't want to, I can let Dong Yicheng do it, he has been coveting those ships for a long time!" Zhao Hao snorted coldly.

"Your Majesty, your subordinates are joking!" Zheng Yong didn't expect the little emperor to hear his words, so he hurriedly smiled and said, "Now the officers and soldiers of our Imperial Navy are all supervising the construction and training in advance, and it is too troublesome to exchange them, and we and the Affairs Bureau have cooperated with each other in Qiongzhou, so we have long been familiar with each other!" ”

"You know there's so much nonsense, have you ever seen this kind of oily coolie? Which time did the Human Affairs Bureau treat you badly? Zhao Yu glared at him and said.

"It's the subordinate's fault!" Zheng Yong hurriedly saluted. He knew that the little emperor wanted to restart the smuggling business, and when he was in Qiongzhou, they were often ordered to send warships to cover the bureau and provide armed escorts, and afterwards the bureau would give them rich rewards, so that they would get more funds than other armies. Of course, he also knew that this was authorized by the little emperor, otherwise even the bureau would not dare to use a penny.

"Well, the monsoon season has arrived, Director Zheng will contact you in a few days, you think that you will provide cover in the name of escorting merchant ships to the north, remember not to leak it, otherwise military law will be involved!" Zhao Yu said.

"Yes, my subordinates have remembered, and I will never live up to His Majesty's trust!" Zheng Yongli saluted......