Which of the following constitutes ordnance fired into high-hazard impact areas?

Ordnance refers to military weapons, ammunition, and related equipment. In the context of high-hazard impact areas—locations where munitions may be fired or explode—certain types of ordnance pose significantly greater dangers than others due to their explosive potential.

Cluster bombs and high-explosive grenades are classified as high-hazard ordnance because they contain explosives designed to create destructive effects upon detonation. Cluster bombs release numerous smaller submunitions over a wide area, increasing the risk of collateral damage and potential harm to personnel and equipment. High-explosive grenades likewise have a lethal capability that can affect a sizable radius, making them critical to categorize as ordnance that should not be fired into high-hazard areas without stringent safety protocols and awareness of potential consequences.

The other options represent either non-explosive or less hazardous configurations. Non-explosive training rounds are specifically designed for training purposes and have minimal risk when fired, while small arms ammunition, although potentially harmful, is typically regarded with different levels of hazard compared to high-explosive ordnance and does not inherently pose the same level of risk when considering the impact area involved.