Military binoculars and military food belong to military equipment, and their production, sale and use are strictly confidential. These devices are usually controlled and supervised by the national army or relevant institutions to ensure their safety and confidentiality.

If these devices are sold in the market, it may involve security issues, because some information may be leaked or stolen, which may pose a threat to the security of the country and the military. In addition, if these equipment are sold in the market, it may involve military subsidies, because these equipment are usually provided by the state. If these devices are sold in the market, it may affect the fairness and justice of state subsidies.

Therefore, in order to ensure the security of the country and the army, as well as the fairness and justice of military subsidies, these equipment are usually not allowed to be sold in the market.