When the ships of the Jinghu Navy carried these savage troops down the Yangtze River, they received a wax pill letter sent by Zheng Yunming through a small road, agreeing to use the sign of white fog falling from the sky and wait for the white fog to dissipate slightly. , whether it was heavy rain or sunny, they would immediately go east by boat and launch an attack on the Mongolian army's largest pontoon bridge at Sanjiangkou. The Mongolian army's defense against this pontoon bridge can not only be described as strict. In fact, there are three pontoon bridges on the Yangtze River connecting the north and the south. The Huhuangzhou pontoon bridge and the Sanjiangkou pontoon bridge are the two most critical ones. A pontoon bridge near the Qingshan area upstream is farther away and smaller in shape. It can only pass some auxiliary troops and food supplies. Most of the tasks for north-south traffic are assigned to the pontoon bridge at Sanjiangkou. This huge pontoon bridge lived up to Meng Ge's trust. It was able to carry 100,000 people across the Yangtze River in just one day and one night. Although it is not unprecedented, it must be regarded as unprecedented. In order to defend it, the Mongolian army pulled up three thick iron locks on the river. This tactic of crossing the river with iron ropes was an old trick of the Central Plains Navy. It was used to restrict the navigation of enemy warships on the water. Each iron chain A warship was tied up every other section of the lock, and its name was Hunjianglong. After the iron rope, there was a water platoon and artillery fort. Over the years, the water platoon and artillery fort became the most distinctive part of the Mongolian navy. The Mongolian army south There were many disadvantages in the battles on the water. Once they failed, they would retreat to the water stronghold and rely on the fierce artillery fire of the water platoon and artillery to block the enemy's pursuers. It can be said that the water platoon and artillery fort became the most vital part of the Mongolian navy. Even the Song Dynasty also The effectiveness of this water fortification was recognized and copied. There are more than twenty artillery forts of different sizes guarding the left and right sides of the Sanjiangkou Floating Bridge. The largest artillery fort is three-fold high-stacked. There is a frightening six-thousand-jin super cannon on the middle fort. There is also a crossbow on the top fort. One shot was earth-shaking, and the shells could fly into the middle of the river. Although its range was not as high as the Shenwu cannon, it was still amazing. After the water drainage, there is a blockade chained with fishing boats. Planks are also laid on it, and a huge wooden shield is erected. Soldiers patrol back and forth on it. Once an enemy ship is found approaching, they can immediately board the fishing boat to defend. The river surged during the violent heavy rain. The mighty river water greatly accelerated the speed of the Song Army ships rushing towards the pontoon. The Mongolian navy warships in front of the three lines of defense could not stand at all under the impact of the rapid river water and were trapped by the river water. They rushed down together and bumped into the first river dragon one after another. Both the Northern and Southern armies had rich experience in dealing with obstacles like Hunjianglong. The Song Army sent out small boats carrying heavy axemen using long-handled stainless steel axes. They stepped forward and chopped the iron ropes with giant axes. . Although this requires hundreds of strong men, is there still a shortage of powerful men in the army? Under the dancing of hundreds of battle axes, all three dragons in the river turned into powder. The heavy rain is pouring down without any sign of weakening. Even the Yangtze River, which is as wide as the Yangtze River, is swollen. The faster the speed of the river, the more inconvenient it is for the two sides to fight. Relative to the Mongolian navy located downstream, it is even more disadvantageous. Especially those bulky large warships, blocked by the river, were almost unable to avoid the small ships rushing over from upstream. The soldiers on the boat held kerosene cans filled with kerosene. The kerosene was equipped with a special formula that could continue to burn in the rain. It could not be extinguished unless it was poured with sand or vinegar. The Mongolian officers and soldiers stationed on the artillery base were surprised to find that their commander Dongping Wanhu Shi Tianze appeared in person on the largest water platoon artillery base wrapped in gauze. His complexion was extremely ugly under his heavy iron helmet, and he shouted loudly in the wind and rain. He shouted: "Today's battle will only involve death! Everyone stay in their positions for me, and those who dare to leave their positions will be beheaded!" At this time, someone exclaimed: "It's Jiao Jin, it's Jiao Jin's flag!" Rushing A large sea swan ship at the front was full of soldiers in full armor. As it moved forward, fire was continuously sprayed from the sides. The Mongolian warships on both sides of it caught fire one after another, and there seemed to be no one there. It was an enemy, and there was a banner on the bow. Despite the heavy rain, Shi Tianze could tell at a glance that this was the banner of his old enemy for many years. He spat fiercely and ran up to the top of the fort in three steps and two steps. On the top of the fort was a Shenfeng pulley crossbow made under new regulations. Below, the range can reach a thousand steps. Several cannon crossbowmen in the canopy were operating nervously. Shi Tianze stepped forward, lifted the aiming hand, and shouted loudly: "Load the string for me, and use this arrow to kill Jiao Jin and kill the Song people." The offensive is shattered!" The crossbowmen turned the winch desperately, and the bowstring opened creaking, almost to the edge of breaking. A crossbowman placed the black iron gun on the arrow trough, Shi Tianze carefully After examining the approximate distance of the ship, he also knew that although Jiao Jin was taciturn, he had a loyal character and would never use a puppet to show off. The general sitting upright on the bow of the ship must be Jiao Jin himself. The two have fought against each other several times, but Shi Tianze has never?With such a sure chance of sniping the opponent, even the legendary duel three years ago was not as sure as it is today. If there is a reason why he is so confident, maybe it is the burning fighting spirit of the beast being forced into a corner. Shi Tianze carefully moved the direction of the crossbow. He was seizing the best opportunity to deliver a fatal blow. There was only one such opportunity. Once he missed it, there would be no chance to turn around. He carefully observed Jiao Jin's ship and estimated the distance between the ship and the fort. Suddenly, a nearby Song Army vehicle and ship fired a cannonball, smashing a corner of the fort into pieces, and the flying wood fragments smashed it into pieces. One of the crossbowmen's brains exploded and his body lay on the spot. "Why are you panicking!" Shi Tianze shouted loudly: "A strong man is running rampant on the battlefield, are you still afraid of death?" He turned around and glanced at Wangshan, turned the heavy ax in his hand upside down, and hit it hard with the thick back of the axe. On the dental machine. On the huge sea swan ship, Jiao Jin's guards were shocked. They found an iron spear and arrow coming from the left side, piercing Jiao Jin's chest and abdomen with lightning speed. Half of Jiao Dutong's body was stained red with blood, and his face was pale, but he held back the severe pain and sat firmly on the chair. Several soldiers rushed forward to lift him down, but he used Trembling hands stopped him. "In this life-or-death decisive moment, leave me alone and order the entire army to continue marching!" At this time, the Song Army's navy and infantry officers did not know the fact that the general had suffered heavy losses, so they took advantage of the wind and rain to desperately attack the enemy in front of them. The fierce firepower of the Dongting gunboats destroyed the beams of the wooden castle in the heavy rain. The small boats loaded with paper-armored soldiers rushed forward to engage in hand-to-hand combat with the enemies on the wooden rafts. The sound of shouts of fierce fighting shook the sky, and even heavy rain could not cover up such a majestic sound. "That's all! I am now a minister of a great country, how can I abandon the Great Khan and run away! Soldiers, please don't retreat, follow me forward!" He pulled off the gauze on his body, revealing his chest with horrific scars, and held the Holding a big ax, he rushed into the formation of the Song army who were on the wooden raft. The six-thousand-kilogram heavy artillery is naturally powerful, but the Mongolians' poor casting technology makes it difficult to guarantee the accuracy of the super heavy artillery. It is difficult for the fired shells to hit the warships approaching at high speed. Although the crossbows and other small and medium-sized artillery fire fiercely, Obviously, they could not suppress the ferocious firepower of the Song army's ship cannon, and the melee on the wooden platoon also showed that the Mongolian army was indeed no longer as tenacious and good at fighting as before. The Song army only used several forced landings to destroy the Mongolian army's wooden platoon artillery. As for the defense near the fortress, the Mongolian troops climbed ashore one after another, mounted their horses and fled in all directions. Most of the water platoon and artillery fortresses fell into the hands of the Song army. After the Song Army occupied the fort, they immediately turned their guns and used the artillery and crossbows on the fort to bombard the pontoon bridge and the last line of defense defending the pontoon bridge. To be fair, the Mongolian soldiers on the last line of defense performed much more bravely than the first two lines of defense. These Goryeo sailors recruited by Mongolia were originally elites trained by Goryeo for a long time. One of the results of Meng Ge's eastern expedition to Goryeo. It was to persuade the surrendered Goryeo to send 20,000 soldiers to go south to conquer the Song Dynasty. These Goryeo sailors, under the command of Marshal Wang Jing, fought very tenaciously and even sank into the river with the Song army who jumped to help. Wang Jing also Even though they were hit by several bullets, they continued to fight and killed dozens of Song soldiers. However, they had never experienced a truly powerful firearm attack. The lead bullets that hit their heads and faces were like sharp sickles, cutting the grass of the Goryeo soldiers. Life soon shattered the last line of defense of the pontoon bridge. The Han infantrymen standing in formation on the pontoon bridge were already unstable. The Song army broke through three formations in a row, and their fighting spirit was getting higher and higher. And as the war continued, a large number of fresh troops came up from the rear in flat-bottomed boats for reinforcements. Their offensive was obvious. There are no signs of exhaustion. What's even more fatal is that at this time, the river water rose, and the huge ships of the Song Army collided head-on. The archers and gunmen hid under the deck and shot from above. The Mongolian soldiers on the pontoon had no power to fight back, and the Wuman and The killings of the white barbarian soldiers were extremely brutal. Every time they killed an enemy, their head was cut off on the spot and put into a leather bag. Therefore, the leather bag at the waist of each barbarian soldier was quickly filled. These rough barbarians howled and slaughtered in the wind and rain. Even though the Mongolian and Han troops had been on the battlefield for a long time, they still felt a chill. The Song army who boarded the pontoon was slashing and killing, and at the same time using new kerosene to set fires everywhere on the pontoon. Even though the heavy rain was very fierce, it was difficult to stop the flames from eroding the wooden pontoon inch by inch. On the other hand, the Song army used giant axes to attack the pontoon. , used long saws and tried all kinds of methods to destroy the pontoon bridge. The panicked cavalry brigade gathered from the shore and tried their best to fire arrows at the bridge, but they were blocked by the dense infantry wall and could not launch the most powerful attack. The cavalry charged. In fact, even if their charge could reach the bridge, the bridge was now full of fighting and fighting people. The cavalry would be knocked off their horses if they were not careful. Moreover, the Song Army's gunboats were constantly moving toward Shooting from the shore, the cavalry congested on both sides of the bridge, but it was difficult to give the people on the pontoon bridge a chance.??Real support from friendly forces.