Five days of shelling was the time that Amaterasu bought for all the Japanese troops on Saipan.

Because the original plan was to carry out the shelling of Saipan for only 48 hours, with the unprecedented firepower of the Xuanwu Fleet, there was not much difference between the 48 hours of shelling and the 96 hours of shelling.

But Amaterasu gave the Japanese troops on the island a seventy-two hours of time.

As early as a month ago, a submarine of the Red Alert Navy had been lurking around Saipan to collect the most detailed information on plagiarism.

As an island in the center of the Pacific Ocean, the data on the rise and fall of the tide changes from day to day, and the frequency is completely different. Often, sometimes the tide stops for three hours, and it should not recede; Sometimes it barely rises, making the boat dry in a hurry.

The meteorological department of the Red Alert Navy carried out a large number of calculations, using the central computer on the command ship Baihu to coordinate calculations, and finally determined the optimal landing time.

The ebb and flow of the tide has a great deal to do with the factors that ebb, especially the need for the Red Alert Navy to send a large number of tanks and armored vehicles to the beachhead, whether the amphibious troop carriers can smoothly send soldiers to the landing ground, and the depth of the sea water brought by the tide is also related to the time for continuous landing operations.

The 2nd Marine Corps required that the landing site should be available for at least three hours at the time of landing.

Saipan's tide was at 5 a.m., and it was dark to see the beachhead, so it was too early to land;

The daily tide was at 5 p.m., and the landfall was too late, and it was too late to unload and establish a beachhead defense area, which was also not suitable. The rest of the time it is a small tide, and there is no regularity in the rise and fall.

There are two kinds of small tides: the high unpredictable tide, that is, the tide that should not recede, and the low unpredictable tide, which should rise or not.

After five days of shelling, which is the time of the full moon, if the moon's gravitational pull affects the current near Saipan three days in advance, a high unpredictable tide can hit the reef, soldiers can avoid wading, and tanks can go into battle early. And have more durations suitable for landing.

And this is also the reason for the postponement of the landfall time, according to the calculations of the Red Alert Meteorological Department, there is a real possibility of high unpredictable tides this time.

The pace of the war was like a gear, and it could not be relaxed at all, and it was postponed for a few days, and the shelling of Saipan was also increased.

Under the guidance of the Black Fox Special Commando, all the exposed targets on the island have already been destroyed.

However, the Japanese troops on the island have also built many concrete bunkers with bunker-like structures, which will become difficult points after the landing operation.

Although sufficient shelling time was used to destroy as many targets on the island as possible, it was undeniable that these times also gave the Japanese troops on the island time to strengthen the concealed defensive line.

Throughout the pace of historical warfare, every time the tactics of war are used, there is rarely a time when people are truly calculating.

It was like a gale that Kublai Khan's fleet encountered in the Korean Strait, and what the Japanese called a kamikaze, as if it were the heavy rain that Napoleon's artillery encountered at Waterloo.

According to the calculations of the Red Alert Meteorological Department and the computer, the Red Guard Corps did not encounter unfavorable weather, and Saipan began to rise as calculated.

On the amphibious assault ship near Saipan, a large number of officers were relieved to see that the tide was really rising.

Immediately, the signal lights in each battleship flashed, and at this moment it was five o'clock in the morning, the sky was cloudy, and for the Japanese soldiers on Saipan, the fleet looming on the sea was still quiet.

But inside the fleet, in the flashing signal lights, a large number of soldiers began to assemble in the landing equipment.

Red Alert Marines are not like the landing operations of this era, where soldiers climb off warships, get on ships, and then dock again.

One by one the amphibious air-cushion landing craft quietly opened the dock to prepare, the rhinoceros amphibious tanks let out a low roar, and in the multi-functional amphibious combat vehicle, neatly lined up armed soldiers, quickly entered the combat vehicle, locked the boarding door, and the closed valve was as thick as a submarine hatch, which could isolate all the seawater.

The Marine Corps is the most technologically integrated unit of all the combat units of the Red Guard Corps, and although it has not yet reached the luxury of every soldier wearing a radio, a combat squad must have three radios.

The first radio is on the squad leader, through which he can know the situation on the battlefield for the first time, know where to need support, and can also quickly call in naval guns or carrier-based aircraft to attack targets that are difficult for infantry to destroy.

The other radio is on the squad fire team, usually the Heavy or the Zero Fire Operator, and the third radio is on the Sniper.

A squad of the Marine Corps of the Red Guard Regiment is composed of a fixed group of ten people, including a sergeant squad leader, a sergeant deputy squad leader, a single sniper, a two-person fire team, and five ordinary soldiers.

The snipers of the Red Guard Regiment are all snipers from high-level units, and even the snipers of the most ordinary combat units are also from high-level units.

A general combat firepower is completely worthy of a combat group of the Japanese army, and even in the squad combat force of the Marine Corps, all of them are from high-level arms, not ordinary soldiers of the regular army.

The Marine Corps is an army built at a high cost, and with the increasingly powerful enemies faced in the future, coupled with the huge force structure, the combat cost of the large corps, Fan Yize also plans to expand the size of the expeditionary corps in the future, but will improve the individual quality of the expeditionary corps as much as possible.

Maybe in a few years, every soldier in the expeditionary corps, even the most ordinary logistics soldiers, will be from high-level arms, and they will all be very good special forces-level soldiers.

At present, such a structure is also practiced only in elite troops.

Because of the conscription of high-level troops, it is good to say that a cost problem is completely affordable for Fan Yize, who already has a world resource.

In terms of recruitment time, the recruitment speed of high-level soldiers is twice as slow as that of ordinary soldiers, and ordinary soldiers can be recruited one a day in a barracks, but high-level barracks, a barracks can only recruit one in two days.

The doubling of the time cost was not practical for the Red Guard Corps in the early stage of development.

Now that the total strength of the Red Guard Corps is close to five million, it is time to take some elite routes, and the opponents it will face in the future are also elite.