So many countries buy American advanced five-generation stealth fighters, can their core technologies be copied?

It is impossible to completely copy, because it is independently developed and created by the United States, and its technology is highly confidential, which can increase the dependence of countries on the United States. But as imitators, we can keep trying to learn, and every time we try, we will have our own breakthrough. Only by self-development can we truly enhance our national defense strength.

First, f35 was originally developed by many countries, or at least funded by many countries, and its positioning is to be sold. Low technical confidentiality. F22 is independently developed by the United States, and its technology is highly confidential. F35 is inferior to f22 in stealth and radar. Secondly, to give full play to the advantages of f35, we need the cooperation of systems, such as satellites, early warning aircraft and data links. It not only binds American allies under the NATO system, strengthens their dependence on the United States, but also prevents allies from threatening the United States with f35. Britain, for example, complains that the F35s that the United States is willing to sell to them is not as good as those used by the United States itself. It can be understood that the F35s sold by the United States to its allies has shrunk, or that Britain cannot play the same fighting capacity as the F35s.

Even so, the United States still has reservations about selling the f35. For example, the United States refused to sell system source code. Let NATO countries be dissatisfied. First, f35 was originally developed by many countries, at least by many countries, and its positioning is to be sold. Low technical confidentiality. F22 is independently developed by the United States, and its technology is highly confidential. F35 is inferior to f22 in stealth and radar.

As a powerful country in science and technology, the United States naturally doesn't want to expose its technology, which also better guarantees its international status in other countries and can increase its dependence on the United States, so technology secrecy is the best way for the United States. However, in this realistic situation, backwardness will be beaten, and all countries in the world are constantly striving to improve their military strength.