What type of rounds include High Explosive (HE) in mortars?

High Explosive (HE) rounds are specifically designed to maximize explosive impact and destruction upon detonation, making them a vital component in indirect fire support with mortars. Standard rounds refer to the typical ammunition used in mortar fire, which includes HE rounds specifically engineered to deliver powerful explosive effects against targets.

The other options, although relevant to mortar capabilities, do not classify as High Explosive rounds. Illumination rounds are primarily used for providing light to enhance visibility during nighttime operations. Smoke rounds serve the purpose of screening and obscuring visibility on the battlefield, rather than delivering explosive force. Munitions rounds is a broader term that could encompass various types of ammunition, but it doesn’t specifically denote HE rounds. Therefore, standard rounds are distinctly characterized by their inclusion of HE munitions for direct combat purposes.