Omni-directional protection provided by a missile system, enabling targets to be engaged from any angle.

Capability of a Man-Portable Air-Defense System (MANPADS) to operate effectively in adverse weather conditions, including rain, fog, or low visibility.

An autocannon is a rapid-fire automatic cannon, typically 20mm or larger, used as a gun-based kill mechanism on air-defense and counter-drone systems alongside or instead of guided missiles.