that portion of the battlefield in which the decisive battle is fought to defeat the enemy. For any particular command, the main battle area extends rearward from the forward edge of the battle area to the rear boundary of the command’s subordinate units., lahinguvälja osa, kus toimub otsustav lahing vaenlase purustamiseks. Iga ülema põhilahinguala ulatub lahinguvälja eesliinist tahapoole kuni alluvate allüksuste piirijooneni., ala, kus toimub otsustav lahingutegevus [Kaitseväe juhtimiskontseptsioon (kinnitatud Kaitseväe juhataja 03.11.2017 käskkirjaga)]

an area such that: (i) the quantity of nuclear material in each transfer into or out of each material balance area can be determined ; and (ii) the physical inventory of nuclear material in each material balance area can be determined when necessary in accordance with specified procedures, in order that the material balance may be established, materjaliartiklid, mille kohta koostatakse nn tuumamaterjali(de) bilanss