After the order to break through was issued, Commander Xu Kang of Jiangyin Fortress still commanded the artillery to continue the operation, according to the battle report of the Jiangfang Army, on the day of the 1st, the fortress artillery entered the apex of the fierce battle, and the fortress fiercely shelled in the two directions of Xiagang and Yunting Town to cover the breakthrough of the army troops.

In the air raid on the 1st, the incompetent naval aviation of the Yue army finally hit the Eshantai and Huangshantai, and because of the clumsy air defense layout, a total of four artillery pieces were blown up. The army also dropped more than 100 bombs on Bawei Port and Shiwei Port in an attempt to break the means of transportation on the river.

At 5 o'clock in the afternoon of the 1st, the army broke into Jiangyin County and attacked and advanced towards the Jiangyin fortress. The Jiangyin fortress was unable to shell the army that broke into the county seat due to the problem of sheltering corners. Commander Xu still tried to shell Xia Harbor and Yunting Town under pressure, and Commander Xu knew that every minute of support for the fortress would allow more friendly troops to be rescued.

The rumbling cannons of Jiangyin Fortress continued all night!

At midnight on December 1, Commander Xu calmly led the fortress artillery in front of the enemy and began to destroy the fortress's equipment, and at this time the fortress's ammunition was only about one-fifth. The officers and men first destroyed the physical sight plane and searchlight, and then began to destroy the artillery.

The old Qing Dynasty guns in the fortress were easier to self-destruct, but the new armor and C guns were not easy to destroy, and the artillerymen tried to stuff the earth into the barrel and fire it in order to blow it up, but the gun body was still intact due to the good quality of the steel of the gun body. In the end, the artillerymen had to pour sulfuric acid into corroded barrels.

The most rare thing is that because of the precious equipment, the officers and men of Taiwan A and Taiwan C actually transported a large amount of equipment to Yizheng and returned it under difficult traffic conditions, and it was said that the army's chariot had arrived at the foot of Huangshan Mountain at night. After the destruction of the fortress was completed, Commander Xu Kang led his troops to retreat to Jingjiang by ship.

Although the destruction of the Jiangyin fortress was complete, due to technical limitations, the artillery could not be completely destroyed.

2 At dawn, Commander Xu led his troops to retreat to Jingjiang, and after arriving at Jingjiang, he led his troops to Zhenjiang Fortress.

When General Xu and his entourage arrived at the Fairy Temple, they learned that the Zhenjiang fortress was tight, and immediately sent a team of artillery cadres to the Dutianmiao Fort to support the battle. Soon the Zhenjiang fortress was also abandoned. On December 8, General Gu Zhutong, acting commander of the Third Theater of Operations, inspected Yangzhou and ordered Commander Xu to lead his troops to Yizheng to guard the Jiangfang. Yizheng County was not prepared for war, and even the county self-defense force was not organized. Only two days after Xu Bu arrived at Yizheng, he was ordered by Huang Jie, the commander of the 8th Army, to withdraw to Tianchang.

After the war, Commander Xu Kang went to Hankou to handle the end of the Jiangyin Fortress. Among the officers and soldiers of the fortress, 37 officers and 115 soldiers arrived in Hankou to concentrate, and these officers and soldiers also carried several artillery guns. Another 37 officers and 541 soldiers were contained by the 1st Army, and these officers and men brought out 620 rifles, 37 machine guns and 4 mortars.

Jiangyin Fortress is an important support for the Xicheng defense line, but the development of fortress operations can fully confirm the disadvantages of traditional fortresses in modern warfare.

The sloppy and rudimentary fortifications of the Xicheng Line do not seem to be very serious in Jiangyin, after all, this section of the defense line was built by [***] regular troops, so it is not too outrageous. However, the layout of the defense fortification line is also a traditional front-line position, lacking depth configuration. After the end of World War I, countries began to revert to the concept of movement warfare, and the arrangement of the Xicheng Line was an outdated arrangement planned to protect the capital. Although the officers and men of the 112th and 103rd Divisions were able to meet the enemy with great efforts, they were both transferred in on an imminent basis and could not fully cooperate with the original intent of the construction of the fortification line.

The blockade of Jiangyin finally worked.

After the loss of the fort, as late as December 21, the large ships of the Chinese army could not pass through the blockade line, and the Admiralty and the Yangtze River Blockage Design Inspectorate Committee were able to calmly deploy the second line of defense on the Yangtze River, and remove the markers of the channel between Hagi Port and Jiujiang. Surveillance posts were urgently set up at all key points along the river. The provinces also closed the river.

On 2 December, the plane threw bombs at the surface of the blockade line with the intention of detonating mines. Of course, this was too clumsy, so no mines were detonated. The 11th team is still unable to pass through the blockade.

On the 3rd, the ship "Toba" reported that there were still artillery guns ready to fire in the direction of Wushan Fort, and the army had to search the riverside again to confirm. It was not until 5 that the 11th Brigade of the Yue Army sailed to the Jiangyin blockade line to clear mines.

Laying mines on the blockade line was carried out by the mine brigade of the Electric Mine School. The mines of the electric mine school were purchased from Germany, and the price was naturally expensive. Therefore, it was sneered at by the Admiralty, and after the Jiangyin River was closed, the Electric Mine School did lay mines, but because of the factional struggle, General Ouyang Ge refused to report the minelaying situation to Deputy Commander-in-Chief Zeng Yiding, which made the Admiralty almost faint.

Zeng Yiding and other important members of the Fujian navy simply explained this move as the whereabouts of the mine funds are unknown, and the lightning school has no thunder to distribute. This rumor was finally compiled by the Admiralty and reported to the Military Commission for punishment, which was the darkest period of the Chinese Navy during the Anti-Japanese War.

Is there any minelaying at the electric mine school? According to the battle report of the Jiang Defense Army and the combat records of the Chinese army, the minelaying of the electric mine school on the blockade line caused great damage to the Japanese warships, and the officers and men of the Mine Brigade carried out the control and issuance of mines in the Yangtze River until 8 December. The battle report pointed out that on the 2nd and 5th, there was a discrepancy between the number of ships going up and down, and it was suspected that they were sunk by mines.

On the morning of the 8th, one motorboat was struck by a mine on the Jiangyin River and sank. On the afternoon of 8 July, seven more iron barges approached the minefield, and the officers and men of the mine brigade lurking on the riverside immediately detonated two rows of 12 mines.

The history of military warfare confirms that at least one minesweeper, the "Yuki Maru," was struck by a mine and sank during the minesweeping process. This is a testament to the efforts of the mine brigade in laying mines. This is also the first batch of mine combat results that can be confirmed by the Chinese Navy.

After receiving the order to retreat, General Ouyang Ge led the personnel of the headquarters to cross the river from Huangtian Port, and the equipment of the school had been withdrawn to the rear school in Yueyang. After leaving the campus where he had been in operation for five years, General Ouyang walked from Jingjiang to Xiaguan on foot. On the way, General Ouyang Ge continued to monitor the battle situation on the radio, and when the blockade was rumored to have been excavated, General Ouyang personally ordered the speedboat group to send two torpedo boats to patrol the river every night.

After arriving at Shimonoseki, the Admiralty, having lost its entire fleet, made a shocking number of accusations against General Ouyang, the two most important of which were suspicion of embezzlement in the funds for the mines and the failure of the mine-boat unit due to the lack of organization.

In fact, the navy cut off the river on its own, making it difficult to carry out the use of minecraft units smoothly. However, the Fujian navy, which already had the ability to make its own mines, has hindered the building of the mine brigade in many ways, making the building of the mine brigade slow. Although the Fujian navy finally achieved the goal of defeating the electric mine system and caused General Ouyang to be executed, the honor of the Fujian navy was also tarnished.

However, historical facts have proved that Ouyang Ge is completely worthy of the nation and the party-state!