tracerök
Tracerök is a term with roots in historical military practices, specifically referring to the practice of using smoke to indicate troop movements or positions. In older times, before the advent of sophisticated communication systems, smoke signals were a primary method of conveying information across distances. These signals could be used to mark the location of friendly forces, to signal the presence of enemy units, or to indicate the direction of attack. The color and density of the smoke, as well as the pattern of its release, were carefully designed to convey specific messages understood by trained observers.
The term "tracerök" likely derives from the combination of words related to tracing or marking a path