Top secret national defense inventions cannot apply for national defense patents. What can I apply for?

Top secret national defense inventions cannot apply for any patents, because the prerequisite for applying for patents is publicity. Once made public, state secrets will be leaked. . .

There was once a case in which Zhang, a senior engineer of a design institute of a state-owned institution in Nanjing, left his post and entered a university in Zhejiang. Later, while working in the design institute, Zhang submitted a patent application for the technical achievements of a secret scientific research project that had declared a national defense patent, so that the technology was made public on the Internet, and he himself was investigated for criminal responsibility for deliberately revealing state secrets.

References:

China Intellectual Property News