It was a light anti-aircraft gun used by Germany in World War II. Designed by Rheinmetall, it is an improved model of FLAK30 to improve the rate of fire. The design began in the late 1930 s, and in 1939 it was accepted as the standard anti-aircraft gun for the German Army and was used extensively throughout the war. Used as a single-barrel towed gun, it was also installed on a variety of vehicles and fixed positions, including a quadruple-mounted version, which greatly enhanced anti-aircraft fire. Because of its excellent performance and high rate of fire, it became a nightmare for the Allied Air Force.

It is the key equipment used to launch, guide and control missiles in modern military equipment. It usually consists of the following parts: power system, guidance and control system, communication system and warhead system. Material selection is key to ensuring system performance and reliability, and commonly used materials include high-strength alloy steels, titanium alloys, and composite materials that require a balance between multiple requirements for strength, durability, corrosion resistance, and weight. The advantages include high-precision strike capabilities, long-range strikes, rapid response and deployment capabilities, as well as high-speed flight and complex flight trajectories, making it difficult for enemy defense systems to intercept.

It is a military equipment with symbolic significance, usually worn by senior officers or commanders in formal occasions. Not only a decorative weapon, but also a symbol of authority and status. The design is usually very exquisite, with exquisite carvings or inlays on the handle and sheath, displaying the wearer's identity and honor. In some countries, the command knife is also an indispensable part of military ceremonies, such as parades and honors. Although the actual use of the command knife is rare in modern warfare, it is still preserved and passed down as a part of military tradition and culture.