The military is a symbol of the strength and stability of a country and nation, and plays a decisive role in national life. Everyone is responsible for the rise and fall of a country. Comprehensive and systematic mastery of military knowledge is the glorious responsibility and obligation of each of us, and it is also the main content of our national defense education. Military knowledge covers a wide range of contents. Only by understanding and mastering it by category can we master relevant knowledge comprehensively and systematically. Military science and technology is the vanguard of all science and technology and can greatly promote the development of basic science and technology. Military science and technology is not only used to develop military weapons and equipment to consolidate national defense and promote peaceful development, but is also gradually transformed into civilian science and technology, which greatly improves our daily life. The development of military science and technology is a powerful driving force for us to improve the country's overall scientific and technological level. We must prioritize national defense construction and give priority to the development of military science and technology.