In theory, it is possible to genetically engineer organisms to produce metabolites that are useful for the military. This technology involves the use of biosynthetic pathways to produce chemicals, and may include a variety of applications: 1. **Drug production**: Microorganisms or plants can be engineered to produce large quantities of drugs that help improve the physical ability or mental state of soldiers. 2. **Biofuel**: Engineered microorganisms can produce efficient biofuels for military vehicles, thereby reducing dependence on traditional fossil fuels. 3. **Biomaterials**: Certain organisms may be engineered to produce lightweight, high-strength materials for military equipment. 4. **Toxins or chemical weapons**: Although research in this area is strictly restricted and internationally prohibited, in theory, organisms can be engineered to produce certain toxins. It is important to note that research involving biological weapons seriously violates international law and ethical standards. 5. **Protective clothing and equipment**: Biosynthetic technology can be used to design materials with special properties, such as self-healing or blocking specific chemicals. However, these applications all involve complex ethical, legal and environmental issues. The misuse of genetic engineering technology can have serious safety and ethical consequences, so such research is usually strictly regulated and needs to be conducted within a legal and ethical framework. In addition, the military application of bioengineering products also involves challenges in biosafety, controllability, etc., so extensive research and testing are required before development and deployment.