Answer:
Chemical munitions are considered military munitions when they are specifically designed, produced, or modified for the purpose of warfare or in armed conflict to produce casualties in humans or animals, degrade equipment, or damage crops or the environment. These munitions are intended to harm or kill through the toxic properties of the chemicals they contain, rather than their explosive or kinetic energy.
The use of chemical weapons, including chemical munitions, in warfare is prohibited by international law, including the Chemical Weapons Convention (CWC). The CWC defines chemical weapons to include not only the toxic chemicals themselves but also the munitions and devices specifically designed to cause harm through the toxic properties of those chemicals.
It's worth noting that not all chemical munitions are considered weapons. For instance, smoke grenades or tear gas canisters might be considered chemical munitions, but they are not necessarily classified as chemical weapons under international law, especially if they are used for purposes consistent with law enforcement rather than warfare. However, the line can be blurry, and the use of such devices in warfare can be controversial.