The entry of the United States into the war was a shock to the people of the occupied areas of Europe, and it also gave the Soviet Union a powerful helper.

Germany and Italy were very annoyed, the Tang Empire secretly signed peace treaties with the United States, the Soviet Union, and other governments in exile in the occupied areas of Europe, obviously not wanting to sit back and watch Germany and Italy become stronger, especially Germany controlled Britain and was building a powerful navy, the Tang Empire thought that Germany was more terrifying than the Soviet Union, so it made the choice to curb Germany's development and growth.

Fortunately, the Tang Empire remained neutral, although it was just an excuse, Germany and Italy still did not dare to openly offend the Tang Empire, for fear that if Tang and the United States united, it would be even more difficult to deal with.

Although the United States declared war on Germany and Italy, it took time for its huge war machine to be operational, to complete the recruitment of troops, the collection of materials, and the assembly of various war machines.

In particular, the European continent and the British three islands and the fall of the US military have no strategic support points in Europe, so it will take at least half a year or even more to prepare for the attack on Europe.

The U.S. military hopes to land on the island of Ireland with the Tang Empire, first recover Britain, and then use Britain as a springboard to attack Europe.

However, the Tang Empire did not want to turn against Germany and Italy at this time, after all, the Tang Empire built a large number of related factories in the territory in order to export steel and other strategic materials to the belligerents, and workers worked overtime to increase production capacity, producing millions of tons of materials every day.

Therefore, the Tang Empire was reluctant to lend the island of Ireland to the US military. However, he didn't want to offend the United States, so Zhang Meng came up with a way to get the best of both worlds, and he sent people to negotiate with the American representatives. Bargaining has been delayed on the basis of the principle of procrastination as long as it can.

On the other hand, the Tang Empire also took measures to step up the liquidation of inventories, reduce the cashing out of hard currencies such as gold and silver from Germany and Italy, and prepare to withdraw from fascist countries such as Germany and Italy.

The U.S. military is preparing to attack Europe. It takes a lot of time. Hitler was also preparing to speed up the expansion of his navy, army, and air forces, especially the navy. The Germans controlled Britain and did not want Britain to counterattack the European continent as a stronghold of the American army, so they hoarded heavy troops in Britain to defend and build huge fortifications. To prevent the landing of American troops.

Eastern European side xiangshang. The Soviets and Germans fought fiercely. Since the end of the Battle of Moscow in December last year, the German army suffered its first operational defeat, losing more than 500,000 troops, the morale of the Soviet army was high, and Stalin ordered a counteroffensive. However, the combat effectiveness of the German army was underestimated, and as a result, three months after the counteroffensive, the German army suddenly made a counter-charge, and the Soviet army was again defeated and retreated to the vicinity of Moscow.

This time the German commander remembered. There was no rush to attack Moscow, but to wait for the cold winter to pass. When the weather is warm, we will fight a decisive battle with the Soviet army.

From March to June 1941, there were few major military operations between the Soviet and German armies, and both sides were engaged in small-scale infiltration operations, both in preparation for Armageddon.

In the Far East, the Kuomintang and the Communist Party have completed the basic agreement of the coalition government, although the national army and the communist army internal generals have caused more than ten years of fighting and hatred like the sea, occasionally engage in small actions, but in Dafang Xiangshang, the Tang Empire's strong suppression constrained the two camps to accept democratic principles to reorganize the national army, Jiang Zhongzheng wanted to fight a civil war, but unfortunately his arm could not twist the thigh of the Tang Empire, Zuihou could only compromise.

In the first 20 years, the KMT and the CCP took turns in power, each serving for five years, and after 20 years, the ruling party and the opposition party were elected by voting according to democratic principles. Because Zhang Meng's mixed-ownership economy successfully embraced the interests of the bourgeoisie represented by the Kuomintang and the proletariat of the Communist Party, the core interests of both sides were not threatened, and the two sides were able to lay down their arms and end the civil war.

China has achieved stability, Zhang Meng is the happiest, he successfully prevented the outbreak of the civil war, prevented the tragedy of the river of blood, and saved hundreds of millions of people, this is a great good deed, although many people in the Kuomintang and the Communist Party hate Zhang Meng to meddle in things, but the strength of the Tang Empire is there, they can only scold a few words behind their backs, but there is no way to take Zhang Meng.

Everything is under Zhang Meng's control, this feeling is very peculiar, like walking a tightrope on a cliff, dangerous and exciting.

Zhang Meng likes this kind of dangerous game, just as he decided at the beginning of the Tang Empire and Germany, it was a dangerous operation, but Zhang Meng could stop at the right time, and Zuihou accepted it when he saw it. Now jumping out of the burden of Germany and Italy and handling the relationship with the United States has made the Tang Empire the biggest beneficiary of the war.

However, Zhang Meng is very cautious, although the United States and the British and French governments in exile are tolerant of the Tang Empire, but the powerful military liliang of the Tang Empire will inevitably be feared by the United States, but the current policy of the United States is to divide the Tang-German-Italian alliance and break them one by one, when the United States solves the two countries of Germany and Italy, it may not give the Tang Empire a good look, at least Britain will hate the Tang Empire.

Zhang Meng is not afraid, everything is in his jihua, and he has a coping strategy. If it weren't for the fact that the Tang Empire's war potential in terms of population could not compete with the United States, and there was still a big gap in industrial manufacturing capacity, Zhang Meng might have followed Germany and Italy all the way to the dark to see what the outcome would be.

But Zhang Meng at the moment is not a reckless man, when he found out after some efforts that the Tang Empire could not compete with the United States in terms of comprehensive war potential in a short period of time, he decisively stopped.

However, this does not mean that Zhang Meng gave up global hegemony, on the contrary, the Tang Empire has obtained the global maritime strategic bases of the entire United Kingdom, and Zhang Meng wants to defend these bases, which is the basis for the Tang Empire to overthrow the United States and dominate Shijie in the future.

In order to achieve this goal, under the urging of Zhang Meng, the Tang Empire launched a nuclear engineering project with all its might, accelerating the research and development of nuclear weapons.

In the past, Zhang Meng felt that there was plenty of time, which was based on the original historical trend of World War II, but now history has changed, and intelligence shows that the United States and Germany are secretly developing atomic bombs, so time is not waiting, Zhang Meng ordered to accelerate the speed of nuclear weapons research and development, and strive not to be blackmailed by the United States, so that the Tang Empire has always been in a strategic initiative.

This is a guarantee to ensure that the United States will not settle accounts with the Tang Empire after the end of World War II.

Although the Tang Empire was founded only 11 years ago, it has always been at the forefront of scientific research, and even in many fields, it is due to the global talent plundering and introduction of Jihua in the Tang Empire, coupled with abundant research and development funds, the huge energy of the third industrial revolution with science and technology as the productive force has been burst out, and the rapid development of the Tang Empire has been promoted.

In the field of nuclear weapons, the Tang Empire has gathered more than 30,000 scientists, engineers and auxiliary personnel, with an investment of up to one billion Tang yuan.

As the main person in charge, Tesla applied for the relevant patents of the logic gate circuit as early as 40 years ago, and replaced the relay with a vacuum tube, and under the prompt and guidance of Zhang Meng, the electronic calculator with the tube as the main body was realized five years ago, using binary values, reusable memory, programmable management, and replacing the mechanical calculator.

This is a big breakthrough, because the research of the atomic bomb requires a large amount of computing data, and the mechanical calculator is not efficient and cumbersome, and the implementation of the electronic calculator allows Datang scientists to calculate various data more quickly and accurately, improving the speed of research and development.

With the outbreak of World War II, in order to train strategic bomber pilots, the Tang Imperial Navy asked the National Academy of Sciences whether it could develop a computer that could control flight simulators. The military's original vision was simply to use the computer to reflect the data generated by the pilot's simulated operation on the dashboard in real time. Unlike previous training systems, the JIHUA system is designed to be as realistic as possible with aerodynamic models so that it can be adapted to a wide range of aircraft types. So the National Academy of Sciences created the Cyclone Project, which built the first cyclone computer on Shijie that could process data in real time, and invented the magnetic core memory.

Subsequently, Tesla's computer R&D team further refined the design to address its shortcomings, and finally came up with a program storage architecture. This system is the foundation of all computers in the future, and has also become an important helper of Datang's nuclear engineering, a supercomputer with an operating speed of 20,000 times per second has been developed, which is specially designed to provide computing data for the nuclear engineering laboratory, which can be accurate to 656 decimal places, greatly saving human computing and various research and development costs, and improving the research and development speed.

The separation of uranium series isotopes in the centrifuge by computer enabled the Tang Empire to obtain one kilogram of fissile enriched uranium with a purity of 87% for the first time in June 1939.

Although Zhang Meng did not understand the detailed manufacturing process of the atomic bomb, he knew the principle, and he told Tesla and other scientists that as long as the enriched uranium reached more than 90%, it would be a weapons-grade atomic bomb, and as long as the enriched uranium was pushed to a critical point, it could be directly detonated.

This principle was known to later generations of elementary school students, but in this era, unless someone tells them, it will take even the top scientists more than a dozen years to figure it out tens of thousands of times like headless flies.

Zhang Meng's point undoubtedly pointed out the direction for scientists and greatly accelerated the development of the atomic bomb.

In June 1940, the Tang Empire completed the test explosion of the small yield enriched uranium critical point chain reaction in the laboratory and achieved success.

When the Soviet-German battlefield broke out again in the large-scale Battle of Stalingrad, the Don Army had already begun to prepare materials for the secret manufacture of weapons-grade atomic bombs according to the requirements of the nuclear research and development team.

In Zhang Meng's view, no matter which side of the United States and the Soviet Union and Germany and Italy win, the Tang Empire with the atomic bomb is enough to compete with them, so that they dare not trouble the Tang Empire. (To be continued......)