The 15th Division is the latest new main force in the Feng Army, although the officers in it are all excellent officers with combat experience drawn from various units, but the combat experience of ordinary soldiers is completely zero, even though Cao Kun has conducted frequent and intensive training for them before, but training and actual combat experience are two different things.

If such a unit directly encounters the main force of the Anhui army, such as the Fourth Division and the Second Mixed Brigade, the end is 100% tragic, this kind of thing has been fully proved by the Liangjiang Seventh Division, this unit is almost the same as the 15th Division and the 14th Division, fully equipped, the soldiers are all good families, and they have been well trained, but the Liangjiang Seventh Division met the Ninth Division, but it was defeated and retreated, and finally it was completely annihilated, and even the division commander committed suicide in defeat. It did not have the same opportunity as the 14th Division to slowly accumulate combat experience and gradually grow, and it was the most fierce offensive and defensive battle as soon as it came up, and the tragedy ended was natural.

The 15th Division did not encounter the 4th Division and the 2nd Mixed Brigade of the main force of the Anhui Army, but when it landed in Shanghai, it encountered the Liangjiang Army, which had a large number of stores in the Anhui Army.

After Duan Qirui went south to Liangjiang at the beginning of last year, he used a large number of soldiers from the Southern Federation to form a group of Liangjiang troops, and the Liangjiang Fourth Division was established at that time, more than a year after it had already reached adulthood.

However, since its establishment, this unit has been stationed in the Jiangnan region, first in Zhenjiang, and then in Shanghai. It means that it did not participate in the subsequent operations of the Anhui Army in the direction of Fujian, Zhejiang, Jiangxi and other directions, that is to say, this unit is actually the same as the 15th Division of the Feng Army, and it is also a newcomer in large-scale combat experience.

In this way, two units that had no experience in large-scale operations collided together in Shanghai!

On 16 April, the first batch of troops of the 15th Division to land did not march towards the city of Shanghai, but launched an attack directly on the nearby Wusong Fort.

Although the 7th Brigade of the 4th Division of Liangjiang stationed in the Wusong Fort resisted hard, it still failed to block the attack of the 15th Division.

The loss of the Wusong Fort was equivalent to the Feng army completely opening the entrance to the Yangtze River, and without the threat of the Wusong Fort, Cheng Biguang's fleet would be able to go up the river and reach the Jiangyin Fort.

Although Cheng Biguang's fleet could not be said to directly resist Jinling and provide support for the Fourth Army in the bitter battle because of the blockage of the Jiangyin Fort, at least along the river in Shanghai, the Soviet navy was enough to run rampant and provide a large amount of artillery support for the army units in the landing operation, which would effectively support the army operations.

Don't look at the weakness of the current Chinese navy, the Soviet navy has only a few cruisers and gunboats, but the navy's firepower has always been incomparable to the army, and the Soviet navy not only has an eight-inch fleet on the Haiqi, but also a large number of six-inch, five-inch, and four-inch fleets, as well as quite a lot of three-inch secondary guns.

The smallest caliber of artillery in this fleet to provide fire support is of the three-inch level, and the main force is mainly six-inch, five-inch, and four-inch naval guns, but on the army side, the main force is the three-inch 75-mm naval guns, and the four-inch 100-mm naval guns are only two battalions.

Although there are 120-millimeter mortars with explosive power not inferior to five-inch naval guns, the range and accuracy are enough to make every army general scold, and generally this 120-millimeter mortar is used as front-line support firepower, and it is impossible to use it as long-distance artillery support.

As the Navy approached the river, providing massive fire support to the troops of the 15th and 10th Divisions, the Army's offensive operations were more smooth than the Operations Division had anticipated.

On the day of the 16th, in order to further integrate the command system of the front-line Fengjun combat troops, Zhao Dongyun made adjustments to the units of the front-line armies, and he ordered the 15th Division to be placed under the command of the Second Army, and at the same time the 3rd Division and the 2nd Heavy Artillery Battalion of the original Second Army were transferred to the Fourth Army.

This move was made because the 10 th and 15 th Divisions had already landed in the Shanghai area together, and in order to enable the two divisions to cooperate more effectively in combat and avoid confusion in command and coordination, of course, it was very necessary for the two divisions to have a unified command structure.

At the same time, since the 3rd Division crossed the river, it has been participating in the offensive in the direction of Jinling with various units of the Fourth Army, and in the early stage, Meng Enyuan, as the supreme commander of the Jinling Campaign, has actually taken over the command of the 3rd Division.

Now the Third Division has been officially transferred to the Fourth Army, also so that Meng Enyuan can command the Third Division in the Jinling Campaign more justifiably.

Among the four armies in the south today, the First Army has the First Division, the Fourth Mixed Brigade, and the First Heavy Artillery Battalion, which can be regarded as the weakest force, but the First Army is mainly facing the Jiangxi direction, and after the Fourth Mixed Brigade participating in the Dangtu Campaign suffered a heavy defeat, it can be said that it is now difficult to play any role.

The Second Army has the 10th, 15th, and 16th Divisions under its jurisdiction, and has already crossed the river in the Shanghai area, facing a large number of enemy troops, but they are all Liangjiang Provincial Army in the Anhui Army, and their combat effectiveness is limited.

The Third Army is deployed in the areas of Henan and Nanzhili, mainly undertaking the strategic garrison tasks of the Henan and Jinghan railways, and currently has the 8th, 11th, and 13th Divisions under its jurisdiction.

Moreover, don't look at the fact that the Third Army does not have a direct combat mission, but it needs to guard against Wang Shizhen, Wu Fengling, and Zhao Erxun of the Southern Federation at the same time, in fact, the pressure on the army is very huge, so even when the war in Jiangnan is tense, Zhao Dongyun does not dare to lightly mobilize the troops of the Third Army to move eastward into southern Anhui.

Then there is the Fourth Army led by Meng Enyuan, although the army has only been formed for two months, but this army specially formed for the Jiangnan strategy is concentrated most of the elite troops in the Feng Army, and currently has the third division, the ninth division, the fourteenth division, the first mixed brigade, the second heavy artillery battalion, and the second cavalry brigade, these troops are the main force worthy of the name in the Feng army, even the first mixed brigade and the fourteenth division, although the combat effectiveness is not as good as the third and ninth divisions, but they are also much stronger than the eighth and eleventh divisions.

It is not an exaggeration to say that the Fourth Army concentrated most of the main forces of the Feng Army!

The purpose of the Fourth Army, which concentrated so many and main forces, was very obvious, that is, to take Jinling and completely lay the foundation for the victory of the Jiangnan strategy.

In addition to these four major armies, the Feng Army also has many units under the command of the commander-in-chief, most of which are deployed in Zhili and Northeast China, mainly a large number of mixed brigades, including the 5th Mixed Brigade, the 17th Division reorganized from the 7th Mixed Brigade, the 9th Mixed Brigade, the 18th Division reorganized from the 10th Mixed Brigade, the 11th Mixed Brigade and the 1st Cavalry Brigade.

Although the reorganization of front-line troops has been adjusted relatively much in terms of division and army levels, in fact, these units were already in place to fight before Zhao Dongyun issued the formal order, because it would not be said that it would have any negative impact on the operations of the front-line troops.

After Duan Qirui learned that the Wusong Fort had fallen, he immediately unceremoniously dismissed the commander of the Seventh Brigade of the Fourth Division of Liangjiang and strictly ordered the Fourth Division of Liangjiang to defend Shanghai.

Duan Qirui did not let the Liangjiang Fourth Division counterattack Wusong Fort or anything like that, because he also knew that it was very difficult for the Liangjiang Fourth Division to hold Shanghai with only one Liangjiang Fourth Division, and it was impossible to say that it was capable of counterattacking Wusong Fort.

If you want to counterattack Wusong Fort, or even to hold Shanghai, it is absolutely impossible to rely on a Liangjiang Fourth Division alone, and Duan Qirui is bound to send troops from other directions to reinforce Shanghai.

And what impact this will have means that the Anhui army originally transferred these troops to the front line of Jinling to reinforce the operation, but now after being forced to transfer to Shanghai, it will indirectly affect the war in Jinling.

This is the most direct purpose of Zhao Dongyun's adventure to send troops to land directly in Shanghai, to relieve the strategic pressure of the Fourth Army in the direction of Jinling, so as to create favorable conditions for the Fourth Army to take Jinling and even annihilate the Fourth Division.

Duan Qirui dispatched the Liangjiang Ninth Division, which was stationed in Suzhou and Wuxi, to quickly move south to reinforce Shanghai, in order to hold Shanghai and block the westward advance of the Second Army of the Feng Army.

In just a few days, there was a series of unexpected events, first the Fourth Mixed Brigade of the Feng Army was defeated, and then the First Mixed Brigade of the Feng Army cut off the supply line of Jinling, which made the Fourth Army of the Feng Army complete the strategic encirclement of Jinling, and at the same time, the Second Mixed Brigade of the Anhui Army quickly advanced eastward and attacked the Fourth Army of the Feng Army, making the battle in the direction of Jinling dangerous and abnormal for the two armies of Feng and Anhui.

At this time, the Feng army's risky landing in the Shanghai area directly broke the strategic balance of the original Jiangnan war, and the two divisions of the second army of the Feng army quickly took the Wusong Fort, and then launched an offensive against Shanghai, which not only made the strategic security of the Anhui army in Shanghai and Suzhou extremely dangerous, but even affected the reinforcement of the Anhui army in the direction of Jinling.

In addition, there is a more important influence that the Jiangnan Manufacturing Bureau is in Shanghai, which supplies more than half of the ammunition consumption and ordnance of the Anhui army, and Shanghai is also the main port for the Anhui army to obtain imported arms.

This series of changes made the war in the south of the Yangtze River even more confusing, and even made a large number of other warlords in China unable to see clearly, and they could not figure out who would win the two armies of Fengwan and Anhui.