Li Guodong gradually recalled some books he read in his previous life. Zheng Chenggong's three failures in the Northern Expedition was related to the difficulty of entering the Yangtze River. Because the estuary of the Yangtze River was high and the waves were harsh in the Yangtze River, the mud and sand washed down by the Yangtze River were undergoing violent land-making movements in the estuary of the Yangtze River. The sandbanks at the estuary of the Yangtze River occasionally emerged from the water and collapsed suddenly. The channel was unstable. The large ship was easily stranded when entering, and the small boat was difficult to enter in the winter with high and high waves, so Zheng Chenggong had to take the risk of going out in the summer. The first northern expedition was due to strong winds and the small boat had not yet figured out the waterway of the Yangtze River Estuary, and he got the news that Li led Tai to attack Zheng Chenggong's retreat, and Zheng Chenggong had to return to defense; the second northern expedition encountered a typhoon; the third northern expedition finally allowed the large ship to enter the Yangtze River Estuary, but he was hit by a slow-moving plan.

After the Qing army captured Jiangnan, Zhikui, Huang Fei, Jing Benche, Chen Tingyang, Zhang Mingzhen, Zheng Chenggong, countless Ming Dynasty generals led their troops to rush towards Chongming one after another, either encountered shallows, hurricanes, or landed and suddenly changed the wind direction and could not retreat and were massacred by the Qing army. The Ming army in the southeast ruined more than 100,000 people and thousands of warships at the Yangtze River Estuary of Chongming Island, with almost no results. The Yangtze River Estuary devoured countless Ming army's lives like a black hole.

Although Li Guodong knew a little about the dangers of the Yangtze River Estuary, he had never experienced it personally before. This time he personally took a boat through the Yangtze River Estuary and experienced the difficulty of the Yangtze River Estuary.

Standing on the rudder of the ship and looking at the Yangtze River estuary on the far side, you can see white waves and strong winds roaring. The Yangtze River estuary was not until the Yangtze River land-building was completed in the late Qing Dynasty, and the waterway was stable, and the birth of steamships, that this dangerous route stabilized and became the busiest route in the world, and Shanghai became a water crossroad.

When the Zheng family fleet crossed the estuary of the Yangtze River, the sea water in front turned yellow. Not far from the north of the Yangtze River was the mouth of the Yellow River. In the Yuan and Ming dynasties, the capitals were in the north. The idea of ​​governing the Yellow River was to protect the north and abandon the south, and let the Yellow River seize the Huai River into the sea. Even if it flooded Huai Yang, it would not dare to let the Yellow River return to Shandong. The Yellow River that seized the Huai River into the sea not only occupied the original main roads of the Huai River. From the north of the Yangtze River estuary to the Haizhou area, all the small rivers entering the sea are the lower reaches of the Yellow River. Every year, a huge amount of mud and sand rushed into the sea, and the sea water in this area turned yellow. The Yellow Sea in later generations was named, and this era was called Huangshuiyang.

The Huangshuiyang waters are covered with shallows, and the seaside channel near the shore is very shallow. Ships in northern China were sailing on flatbeds, and the Zheng family's Dafu ships were all pointed sea ships, so they did not dare to approach the shore at all.

After passing the Haizhou sea, the sea water changed from yellow to green, and continued to sail north, the light green turned dark green, and gradually turned blue. This is the Black Water Ocean in the north. The Yellow Sea was divided into the Yellow Water Ocean, Qingshui Ocean and Black Water Ocean. Just passed by that section of green water, Qingshui Ocean.

The Zheng family army fleet bypassed the Jiaodong Peninsula and entered the Beiyang Sea. The fleet sailed straight towards Pi Island.

Near the Dengzhou sea area, a black Dengzhou navy fleet appeared on the sea surface, with about 30 sand ships and more than 100 small boats, arranged in neat formations, sailing from the direction of Pidao toward Leiden. The Ming army fleet posed the "yellow" flag.

When the Laiden Naval Division saw the "Zheng"-shaped fleet coming from the southern sea, it immediately set up its formation and arrived towards the Zheng family fleet. Although the Laiden Naval Division was not as good as the Zheng family army, there was a conflict and the Zheng family army's naval division did not take much advantage. These officers and soldiers of the Laiden Naval Division were all veterans who had fought with the Later Jin for many years. Since the Battle of Sarhu, the Ming army had suffered repeated defeats in the Later Jin army, but they had never suffered any losses on the water. The Dongjiang Army of Pi Island relied on the cooperation of the Laiden Naval Division to cause trouble for the Later Jin many times. Every time the Later Jin army tried to attack Pi Island, they were beaten to the ground by the Laiden Naval Division.

The saying that failure is the mother of success is not very suitable in military terms. It is fine if an army fails once or twice, but with more failures, morale becomes lower and lower, the soldiers will become less and less confident. On the contrary, if they win every battle, morale and confidence will rise sharply, and the more they fight, the easier it is. Today, the Ming Continental Division meets the Later Jin army, it can be said that they are afraid of the enemy like a tiger. However, the officers and soldiers of the navy have won many battles. It can be said that the Laideng Navy is still an elite force.

So far, the biggest setback that the Laiden Navy encountered was the Wuqiao Mutiny, and Kong Youde took away some of the naval officers and soldiers and ships, but the main force still existed, and the Laiden Navy defeated Kong Youde's attack several times.

"Brother Zheng, we are also the Ming Navy. Why do they seem to have some bad intentions?" Li Guodong asked when he saw the Laideng Navy set up a provocative formation.

Zheng Zhilong's face was solemn: "In their eyes, we should be said to be ill-intentioned, right? We are the Southern Navy, but we came from afar and went to the seas under their jurisdiction in the north. This is a cross-border. We do not have the emperor's edict or the Ministry of War's military dispatch documents. If we come to the northern waters without authorization, they will definitely think that we have bad intentions."

"What should we do now? You can't fight a battle with the Laiden Navy for no reason before you start fighting with Jiannu."

"Send someone to talk to them."

"Who will be sent?"

Zheng Zhilong turned his head and shouted: "Shi Fu!"

"The last one is here!" Shi Fu stood up and responded loudly.

"You went over and talked to them and said that we were here to help them deal with Jiannu. Tell them that Jiannu will invade Pi Island soon, and we will deal with Jiannu's naval commander."

"No!" Shi Fu bowed and left.

"Brother Zheng, I'll go too! I know more about Jiannu's movements, so I'll go with General Shi."

"Okay!" Zheng Zhilong nodded, "Little brother, be careful!"

The Zheng family's fleet sent a flag-speaking signal to the Laiden Navy, and then a small boat sent Shi Fu and Li Guodong to the opposite general's ship.

The ship of Huang Fei, the general general of the Laideng Navy of the Ming Dynasty, was a sand ship of 500 materials, equivalent to about 250 tons.

When he saw Huang Fei, Li Guodong felt very moved. Huang Fei was Huang Long's nephew, and his original surname was Tu. After Mao Wenlong was killed, he passed the Wuqiao mutiny and Huang Long took over as the general of Dongjiang Town. Later, Huang Long died heroically in the Battle of Lushunkou. Because Huang Long had no son, he changed his mother's surname and replaced his uncle Huang Long as the general of Dongjiang Town, and led the general of the Laideng Navy. In real history, bandits broke through the capital. After Chongzhen chose the crooked tree in Coal Mountain, Huang Fei led his navy south to enter the Yangtze River to defend the Qing army across the river. However, the originally agreed that Zheng Zhilong, who was guarding the river together, did not come. Huang Fei's navy could not defend the Yangtze River and was broken through the Yangtze River defense line. The Hongguang Dynasty was destroyed. Huang Fei insisted on resisting the Qing Dynasty, but later he was defeated and captured and killed by Hong Chengchou.
Chapter completed!