staging area / staging zone

theater staging area

intermediate staging base

reception, staging, onward movement and integration (RSOI / RSOM&I)

staging

bosun's-chair staging

collecting and staging unit

casualty staging unit

grid zone / grid-zone

zone standard time (zone time) (ZST)

killing zone / kill zone

grid zone designation / Grid Zone Designator

grey-zone / grey zone (international relations)

hundred-per-cent zone (one-hundred-per-cent zone)

no-fire zone / no fire zone

flight restriction zone / flight restricted zone (FRZ)

area of separation (=buffer zone)

buffer zone / area of separation

main fighting area / zone

area of war/war area

potential danger area (trouble area)

hazard area / hazardous area

killing area / kill area

open area danger area

air defense zone

air defense zone commander

air exclusion zone

assault dropping zone

cold zone (CBRN)

combat zone

communications zone (COMMZ)

contact zone

contaminated zone