English to Polish Other Military / Defense

Screening is often done by reconnaissance units such as cavalry, which operate within range of supporting artillery. In contrast to a guard force, a screening force may consist of a scout platoon rather than a task force or squadron; and its mission is less ambitious, focusing on early warning to the main body rather than preventing enemy observation and direct fire on the main body. Also, unlike a guard force, a screening force is deployed over an extended area, to the rear and flanks of the main force, rather than to the front. The screening force's minimal tasks enable it to have a wide frontage. The screen line describes the trace along which the protecting unit is providing security.[2] Aerial assets are used when ground assets cannot keep pace with the main body. (Wikipedia: https://en.wikipedia.org/wiki/Screening_(tactical))