For the past two years, the U.S. military has been planning a counteroffensive on the European continent, but the Tang Empire has not opened the island of Ireland, so that the U.S. military cannot use the island of Ireland to attack Britain, and then use Britain as a springboard to counterattack Europe.

In the end, the U.S. military chose to launch a counteroffensive in the Mediterranean against the European operation, aiming not at the Germans, but at the weakest Italian army.

The U.S. military was actively preparing, a large number of troops and supplies gathered in Egypt, and the Italian army on the opposite side was terrified, but Mussolini said that the Italian army was enough to block the attack of the American army.

At the same time that the United States and Italy were about to start a major war in the Mediterranean, the Tang Empire in the Central Pacific ushered in a new era, and after more than two years of preparation, the Tang Army finally obtained the coveted weapon of mass destruction - the atomic bomb.

This is the most primitive and rudimentary weapon in the nuclear weapons family, and the simplest critical detonation of atomic bombs, but for the Tang Empire, the production of high-enriched uranium raw materials is a major obstacle, and each gram of weapon-grade enriched uranium requires a lot of money and time, and then it is made into an atomic bomb that can be put on the battlefield, which took the Tang Army two years.

In the end, the Tang army got what it wanted, and the first batch of five atomic bombs was made.

On an uninhabited island in the South Pacific, the Don Army detonated the first atomic bomb as an experiment. The first impression of the atomic bomb was an extremely intense flash of light, which was as bright as the sun at noon within a radius of 50 kilometers. Immediately afterward, a huge fireball formed in the sky, shaped like a larger sun. But its colors are constantly changing, and there are gold, purple, violet, gray, and blue. It lasts for more than a dozen seconds. This big fireball illuminates the whole island, and the brightness and beauty that is presented in front of people's eyes can only be understood, but cannot be expressed in words.

The bright fireball then transformed itself into a mushroom cloud, which gradually rose into the sky to a height of 3,050 meters. The fireball extinguished on its own. Then, a huge cloud formed in the sky, which rushed towards the sky in an extremely turbulent and surging manner. At this time, the altitude was already 10,980 meters above the ground, and the clouds formed at this time gathered terrifying energy, which was extremely powerful. Subsequently, the Tang Army scientists in the distance also heard two additional explosions in the clouds.

Zhang Meng and the core officials of the empire witnessed the power of the atomic bomb on Air Force One. The uninhabited island sank in the explosion. More than a dozen decommissioned warships within a radius of 10 kilometers were overturned and sunk, monkeys, cattle and sheep on the outlying warships died in the radiation, and the animals that survived were taken away by researchers in full-body protective clothing for research, especially the condition of monkeys will be the focus of research.

Of course, if it weren't for Zhang Meng's reminder, the scientists and related personnel of the Tang Empire would definitely not be able to prepare so thoughtfully and comprehensively, and they would have been able to grasp the details through more nuclear shiyans. However, Zhang Meng informed in advance of the hazards of various explosion shock waves, photothermal radiation, induced radioactive radiation waves, electromagnetic pulses, high temperatures, residual radioactive elements, etc., so that scientists could prepare relevant equipment for data collection, protection and in-depth research. One nuclear shiyan is equivalent to completing the effect of 100 nuclear shiyans, which not only accelerates the cognition and research speed of the Tang Empire in nuclear weapons. It also saves a huge amount of nuclear shiyan overhead.

The nuclear charge of the Tang Army's first atomic bomb was three kilograms, but after the calculations of scientists, the actual effect was only 1.3 kilograms, the explosive yield was less than 32,000 tons of TN-T explosives, and the effective killing radius did not exceed 20 kilometers.

Since then, two more nuclear shiyan have been carried out, so that scientists have a deeper research and understanding of the atomic bomb, and obtain a more solid Jishu foundation and shiyan data for the future nuclear weapons industry of the Tang Empire, while the United States and Germany are also developing the atomic bomb, but it is far less than the progress of the Tang Empire, and they cannot obtain valuable shiyan data and accurate understanding of new things from Zhang Meng in advance like the Tang Empire.

Not long after, the Tang Army successfully built the first atomic bomb that could be used in actual combat, and Zhang Meng named it Xiong Child. The Tang Army made the first atomic bomb codenamed Bear Child into an air-dropped aviation nuclear bomb, using the Great White Crane strategic bomber as the carrier, waiting for the opportunity to carry out actual combat Shiyan.

This weapon will change the Shijie pattern, Tang Jun accelerated the mining and purification of nuclear materials in Australia to weapons-grade concentrations, and scientists have continuously improved the centrifuge after more in-depth research, and the purity is higher. At the same time, according to Zhang Meng's guidance, scientists quickly invested in the research of more sophisticated and powerful thermonuclear weapons, and the development of related nuclear reactors was accelerated.

Zhang Meng asked the nuclear engineering laboratory to speed up the development of nuclear reactors, mainly in several aspects, one is that the Tang army should use nuclear reactors to generate electricity to solve the problem of power consumption in the Tang Empire, and the other is that the Tang Army's nuclear-powered submarines, nuclear-powered cruisers, and even nuclear-powered battleship projects need small nuclear reactors, especially the orbital kinetic energy cannon in the Tang Army's future weapon, Jihua, consumes huge electricity, and only nuclear reactors can provide continuous power guarantee. The third is the need for nuclear weapons engineering, and the weapons-grade plutonium element in thermonuclear weapons needs to be produced through nuclear reactions, which is a by-product of nuclear reactors, killing two birds with one stone.

In fact, Datang had already successfully developed a nuclear reactor before it developed a nuclear weapon, because the uranium concentration required for a nuclear reactor was not high, only about 30% was enough, and the laboratory had already completed the relevant shiyan and preparations.

But safety is a huge test, and Datang scientists have to carry out repeated shiyan, looking for all kinds of strong materials to prevent the outbreak of danger, to ensure the absolute safety of the nuclear reactors used by the Datang Empire.

This is also Zhang Meng's most concerned issue, he knows the horror of nuclear disasters, the Tang Empire can not withstand such a toss, especially Chang'an, Yanjing, Jinling and other cities are located on the island, natural disasters have to be taken into account, which has brought more comprehensive problems to scientists, so it was not until nearly a year after the advent of the atomic bomb that the scientists of the Tang Empire finally designed a reasonable and safe nuclear reactor protection system.

With the start of construction of the first nuclear power plant of the Tang Empire, located on the east coast of Australia, the Tang Empire must observe for a period of time to ensure that it is truly safe before building a nuclear power plant on Daxing Island south of Chang'an, after all, Chang'an is the capital of the Tang Empire, and it is necessary to ensure absolute safety.

However, officials in the Tang Empire still put forward new suggestions, one is that Tesla's wireless power transmission system has made progress, which can light a 30-watt light bulb 500 meters away, and cabinet officials hope to speed up the research of wireless power transmission, so that nuclear power plants can be built in Australia, and electric energy can be directly transmitted across the sea to Chang'an, Yanjing and other places to ensure the safety of the capital.

The second proposal was to require the Tang Empire to move its capital, leaving the original Tonga Island and moving to Sydney, and at the same time changing Sydney to Chang'an, with the original capital as the accompanying capital, and the Far East Vladivostok also setting up a accompanying capital, in order to strengthen the Tang Empire's control over these regions.

Both proposals are very good, after Zhang Meng considered it, he was more inclined to the latter, but the specific relocation of the capital still needs to be studied, Zhang Meng is reluctant to his Daming Palace, which is like his home, and plans to move away in its entirety, but this is too extravagant and wasteful, and he is worried about national public opinion and affecting Zhang Meng's personal image, so he has to study it in depth. (To be continued......)