Why did the United States become the world hegemon after World War II? The tiger group of "Pie Falling from the Sky" contributed a lot.

Many people in this world were born with golden spoons. They use all kinds of superior resources to quickly rise to the top of their respective industries. However, there are still a group of people who can stand out at a young age with hard work, strength and luck, although they don't have a prominent family background, such as Huo Qubing who destroyed Mobei and Wang Bo who wrote the preface to Wang Tengting.

Whenever I read their stories, I will give birth to a kind of "futile" despair while admiring them. I deeply feel that the end of my life is sometimes the starting point of others. No matter how hard I try, I'm afraid I can't reach their height. Since ancient times, the concept of "one country, one principle" has existed in the traditional culture of China. If the country is personified, the young talents in the United States are Rainbow Bo and Huo Qubing.

However, it did not repeat their tragedy, but continued its glory to this day. So how did it do it? In addition to the superior geographical location and industrial development since the War of Independence, the tiger pounce mission, which is comparable to the "pie falling from the sky", is absolutely indispensable. Before that, let's take a look at the "past lives" of the United States before its victory in World War II.

1865 after the civil war, the big bourgeoisie in the north established its dominant position and cleared the way for the development of capitalism. Since then, the American economy has developed rapidly, but before 19 14, it was still the weakest compared with western powers. However, the outbreak of World War I gave the United States a chance to catch up.

Due to its superior geographical position and neutral policy, European powers mired in war have come to the United States to order much-needed war materials, which has made the United States jump from a debtor country to a creditor country. 19 17 zimmermann incident prompted the United States to change its previous neutral policy and declare war on Germany.

After the victory of World War I, the United States, as a victorious country, finally gained the right to speak on the international stage. The economy is also booming, and the stock market has hit record highs. However, the excitement of Americans did not last long. Only eleven years later, the biggest economic crisis broke out in the United States. The stock fell from the apex to the abyss overnight, and soon spread to stock markets all over the world, which indirectly led to the outbreak of World War II.

Time is up 1940. After the French government announced its surrender, the war finally reached the English Channel. On August 1 day, Hitler issued the first war order. 17 aims to destroy the economic potential of the British war, thus opening a large-scale bombing of the British mainland, known as the "British War" in history.

Goering, then commander-in-chief of the German Air Force, was a fan of the theory of "air superiority". He believes that large-scale bombing can not only destroy the enemy's economic base, but also fundamentally disintegrate the enemy's will to resist. Therefore, in the absence of the navy and the army, Goering mobilized 2,669 aircraft of various types and dropped about 60,000 tons of bombs on Britain.

On August 13-23, the German air raid reached its climax, and more than 1000 planes were dispatched every day, and the British economic and industrial foundation was completely lost. Although the United States expressed sympathy for Britain's situation, it still firmly adhered to the policy of neutrality. In do or die, Churchill decided to gamble on an unorthodox plan in exchange for American support.

As a former "empire where the sun never sets", Britain has rich experience in being the boss. After World War I, the British did not indulge in the afterglow of victory, but started the research and development of future technologies early and made great achievements, especially in radar and jet propulsion technology.

Although major countries have recognized the positioning ability of radar in long-distance and bad weather conditions, with the technical conditions at that time, it is necessary to build a room-sized equipment to generate effective signals. Therefore, it can only be used for early warning of ground stations and cannot be integrated into aircraft.

At this moment, Sir Tizade, president of Imperial College London, and his partners developed a new kind of hardware-cavity magnetron, which will greatly reduce the size and power required by radar sensors and make it possible to manufacture airborne radar. However, the industrial infrastructure that has been completely destroyed at this time has been unable to turn it into reality. So, at Sir Tizad's suggestion, Churchill decided to entrust a working group to share some British technical secrets with the United States in exchange for financial and manufacturing support.

As Britain is the only country in Europe that has not been occupied by Nazis, President Roosevelt hopes to provide Britain with help within his power. If Europe falls, America's interests in Africa will not be guaranteed. But not every congressman has Roosevelt's strategic vision, and isolationism prevails.

In order to dispel the concerns of parliamentarians, Roosevelt and Churchill decided to form a group of six top military scientists to secretly enter the United States, formulate technical manuals and blueprints, and show the advanced technology of Britain. On August 14, Sir Tizad left the team and landed in Ottawa, Canada, where he met with Canadian officials to assess the country's contribution to the war on science. The other members went directly to Washington on the Queen of Canada.

Apart from some personal belongings, the most important thing is a metal contract box. It contains almost all British military secrets, including gunpowder, supercharger, gyro sight, submarine detection device, blueprint and circuit diagram of self-sealing fuel tank. It is said that it may also include the idea of making jet engines and atomic bombs, as well as research materials. Of course, the most important thing is the prototype of the cavity magnetic tube.

On September 12, after getting rid of the entanglement of German U-boats several times, the five-member team narrowly escaped death and arrived in Washington. Subsequently, under the coordination of the two secretaries of the Canadian National Research Council, technicians from the United States and Britain held many consultations at the Sholem Hotel, not far from the British Embassy.

Although scientists from both countries want to reach an agreement as soon as possible, in view of the numerous state secrets involved, both sides are very cautious to avoid paying too much but not getting the due return. It was not until a week later that things got better.

On September 19, some military team members attended the consultation meeting chaired by Dr. loomis, Chairman of Microwave Committee. In order to reach an agreement as soon as possible, the British can't wait to demonstrate the early warning radar technology of the local air defense radar network using cavity magnetic tubes. Originally, they thought this technology was unique to Britain, but they soon found that it was almost the same as the long-wave CXAM radar of the US Navy. This immediately cast a shadow over the confidence that the British had just established.

With the introduction of Americans, they gradually understand that this is actually an experimental 10 cm wavelength short-wave radar, and the receiver technology is provided by Bell Laboratories and General Electric. But it doesn't have enough transmitting power and wavelength, so it can't achieve the desired effect, let alone be installed on a fighter plane.

Hearing this, the British immediately introduced the cavity magnetic tube technology with confidence. This strong magnetic tube technology, which outputs an amazing power of about 10 kW at 10 cm, shocked the American technicians present. So, the two sides instantly eliminated the barrier and sat down to seriously discuss the application prospect of strong magnetic tube technology in airborne radar.

A few days later, the British showed great interest in Norton bombsight. But President Roosevelt refused to enjoy it unless Britain could provide evidence that Germany also had such technology. The British did not insist too much on this issue, but only asked the Americans to provide the size and materials of the sights to prepare for the future.

At the same time, Tizade's team also visited Fermilab of Columbia University and told Fermi about the concept that Rudolf Pailes made nuclear fission through uranium enrichment. But Fermi is not interested in this, because his research purpose is the application of nuclear energy in the industrial field, not the manufacture of nuclear weapons. Later, the British visited the Lawrence Fission Laboratory in Ottawa.

Lawrence was invited by the British to participate in the secret exchange of core information among the United States, Britain and Canada. His slow neutron experiment promoted Fermi's work for several months and provided theoretical support for the separation of uranium 235.

After many rounds of consultations with Americans, Tizad returned to London 1940+05438 on June 8 with the joy of victory. However, he soon found that his great achievements were useless, because when his new weapons were put into the battlefield, Germany's large-scale bombing of Britain ended.

Even so, the tiger mission certainly contributed to the change of the course of World War II and the economic and technological prosperity of the United States after the war. At that time, it provided Britain with much-needed industrial capabilities, promoted the development of radar, aircraft engines, synthetic rubber and nuclear weapons, and established trust and cooperation among scientific giants for the first time.

For the United States, although it involved the United States in the world battlefield in disguise, it also provided the United States with a "free lunch" and established a tripartite cooperation mechanism among the United States, Britain and Canada. Relying on the absolute economic and technological advantages after the war, Britain, once the boss, was left behind and became the new world hegemon.