Vehicles and ships are not a new thing in the Song Dynasty, but in history, large-scale military use is still in the early years of the Southern Song Dynasty, Zhong Xiang, Yang Qi rebel army, and later Yue Fei also imitated vehicles and ships to compete with it, so that the vehicles and ships shine in the military, derived many models, used in the war with Jin and Yuan. But Zhao Ta's arrival made the world peaceful, and naturally no one made any trouble, and he did something to 'equal wealth and poverty', but he did not forget it, and handed it over to the internal water army after transformation.

Of course, Zhao Tan's original intention was just not to let the weapons that had shined in military history such as vehicles and ships be submerged and leave regrets for future generations. And to send the internal water army to the front line, his idea was also to protect the safety of the waterway, and he did not think of using it in a large-scale water war, and then let the Jiangling water army participate in the attack on Liaoyang Mansion was also intuitively felt that it might come in handy, as for the specific use, he did not know.

Du Feng's words touched the hearts of Ma Wei and others, but fighting is not a family, it is to die, in line with the old principle that hearing is false and seeing is believing, they decided to review the Jiangling Navy the next day, depending on the results in making a decision on whether to send them to fight the Jinshui Army. The next morning, the Gangneung Navy assembled on the river outside Heye Port, and everyone was able to carefully see the true face of the car and ship.

There are two 'Flying Dragon' class vehicles and ships that accompanied the army this time, one as the flagship of the fleet and the other as an auxiliary ship. The whole ship is twelve zhang long, five zhang wide, six wheels are set next to it, each wheel is eight, driven by four people trampling, there are car guards on both sides of the boat, and the wheels are not seen when entering the water. In the middle of the ship, which is three stories high, has two main and auxiliary sails on the top, and a lookout post is placed, which can be driven by sails when there is wind. In wartime, it is driven by manpower. It is equipped with bow and stern guns, and two machine guns on each side. There was a machine gun on the top of the building, and the crew was one hundred and fifty people. The main warships are 30 'Flying Tiger' class vehicles. The hull of the ship is smaller than that of the Wyvern, the building is two stories high, there are four wheels next to it, and there are 110 members, in addition to the gunners, there are also 30 soldiers for boarding and fighting.

Next, the Jiangling naval army conducted a drill, and under the command of Du Feng, the warships gathered and scattered, showing the troops various formations such as attack, encirclement, surprise attack and cover. Everyone watched the cars and boats coming and going on the river, advancing and retreating freely. Where there is still a cowardice when at sea, it is not too much to call it a dragon on the water. In particular, the speed of the vehicle and ship is eye-opening, much faster than the warship propelled by the Jin Army with oars, and it is definitely not running when it is targeted.

Everyone is an expert, and they know how many catties and taels they have as soon as they make a move. After the exercise, the generals were all impressed by the superb combat qualities of the Gangneung Navy Army, and their views were reversed, so that they naturally had no objections to the battle. The troops, of course, were even more happy to have them join the convoy. At least everyone can sleep peacefully, and there is no need to search for the Jin army warships that will come out of nowhere when marching.

On the tenth day of the first month of April, after resting for two days, the fleet of the Song Navy set sail again, although with the killer weapon of the Jiangling Navy Army. However, they still maintained a high degree of combat readiness, and the infantry cavalry army boarded the baggage ship to strengthen its self-defense capability according to the original plan, and at this moment they even had some hope that the golden navy army would come to the door quickly. In order to avenge his plot, he will also get rid of this trouble. lest when the great war arises, they will be divided against them.

In the past, the main task of the Gangneung Navy was to clear out the water bandits and protect the safety of the waterway. I think those people are doing murder and overselling things. It is inevitably very slippery, and it is not easy to catch them, but the long-term relationship with them has also made him a master of tracking and searching, and he is good at conducting 'anti-guerrilla' operations. But God played a joke on these Gangneung sailors who were bent on making meritorious contributions, and the Jin Navy's army suddenly disappeared without a trace, even if they searched the rivers and reeds that were easy to hide, it was still difficult to find a trace......

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Xu Wen's successive victories in the battle against the Song army greatly excited the Liaoyang Mansion, and while awarding a heavy reward, he also hinted that he would do his best to defeat the Song army and prevent it from continuing north. At this time, the Song army has passed the crane field, and it is getting closer and closer to Liaoyang City, and at this time the rainy season has come, only a few rains will make the water level rise sharply, the channel will be widened, and the Song army's warships will also get rid of the passive situation, so that they will lose their current advantage.

These unfavorable conditions made Xu Wen feel pressure, he knew his record best, sinking and damaging so many warships was only a haircut for the Song army, and it was completely able to bear it, and naturally it could not make it give up and continue to go north. Now it is only possible to retreat if there is a larger-scale operation in Tongguò, which causes unbearable losses to the Song army, and at this time, the Song army has also strengthened its vigilance and repeated the old tricks, and it is difficult to succeed in the sneak attack, so Xu Wen decided to shrink the battle line and concentrate his forces in one place to fight a big battle.

On April 13, the Song fleet sailed to the mouth of the Sanjiang River, named after the confluence of the Liao, Liang and Hun rivers. The three rivers intersect to form a vast surface of water, which seems to be calm but has an undercurrent surging, and the shallows are dense, and I don't know how many ships have sunk here, so it is also called 'ghost sorrow'. If the Song army wanted to go to Liaoyang, it had to turn from the Liao River to the Liang River to reach it, and there was no other way.

Just after the end of the day, the weather changed suddenly, and after a gust of wind, the sky suddenly became cloudy, and the air was so humid that it could wring out water, which made people feel very depressed. The Song army's front army had passed, and they sent reconnaissance ships to carefully survey the water situation, mark the channel with pontoons, and inform the Chinese army that there was still no trace of the Jin army.

"Du Shuai, the enemy army has arrived!" There are several sandbars formed by the impact of the three rivers in the river, overgrown with dense reeds, and it looks like a connected island from a distance, but in fact, the waterway can be sailed vertically and horizontally, and Xu Wen, who is hiding in the reeds and recuperating on the boat, received a report from the lookout post.

"Well, how far is it, and what is the formation?" Xu Wen asked without opening his eyes.

"Du Shuai, the vanguard is still more than five miles away from where we are, and it is still sailing in a single column, escorted by warships, and there is no change from before." The sentry said.

"Hmph, remember to eat or not, and report it when it turns the corner into the Liang River!" Xu Wen snorted lightly, he was an old man, and he suddenly withdrew his hand and retreated his naval army for a hundred miles, which made the Song army, who was on guard, happy and a little disappointed, but this was exactly the result he wanted, so that the Song army was at a loss, and when he relaxed his guard, he would give them a fatal blow.

The Song warships that were approaching the 'boom ......' suddenly opened fire and shelled both sides, and several shells exploded in front of the sandbar, and the rising water columns mixed with aquatic weeds and mud and sand were scattered from the air.

"Du Shuai, have they discovered us, do you want to attack?" A lieutenant rushed into the cabin and asked anxiously.

"Don't panic, the enemy is throwing stones to ask for directions, testing the truth, otherwise there will be no such aimless indiscriminate artillery, and if you give the order, the cannonball will hit the head without an order and will not be allowed to move, and the violator will be killed." Xu Wen sneered and said, the more the enemy army is like this, the more it shows that they have not found their traces, and it also shows that they are weak-minded. Under Xu Wen's strict orders, the Jin army hiding in the sandbar remained dormant, but as expected, the Song army's artillery bombardment soon stopped, and continued to drive forward along the marked channel, turning east into the Liang River.

Xu Wen also walked out of the cabin and boarded the shipbuilding to look at the river, only to see the Song army fleet on the big river stretching continuously, the masts like a forest, breaking the waves, like a long dragon. At this time, because the fleet was going upstream, and the sail was lowered, and the speed of the ship was very slow, it was an excellent opportunity to attack, but he still did not issue an order to attack, but just looked at the river thoughtlessly, I don't know whether he regretted the impulse of the year and lowered the gold angrily, or hoped to defeat the Song army and become famous in a battle, so that people would know that although they were from a low background, they were by no means a worm, and they were real dragons when they jumped over the dragon gate.

"Give a signal, order the forward army to attack, intercept the enemy's front line; Distract the army on the right flank, attract their attention, disrupt their formations, and isolate their baggage convoys. Xu Wen saw that the Song army brigade had sailed into the shallow waters of Lulu Bay and gave the order to attack. In the sound of the long horn, the Jin army, hidden at the fork of the Liao River and lying in the meadow on the east bank, attacked at the same time, and more than 100 ships rushed to their respective targets, and the prelude to the battle began...... (To be continued......)