зона перешкод; смуга перешкод (загороджень)
breaching of obstacles
negotiation of obstacles
timber obstacles
artificial beach obstacles
artificial underwater and beach obstacles
Modified Combined Obstacles Overlay (MCOO)
observation and fields of fire, avenues of approach, key and decisive terrain,obstacles, and cover and concealment (OAKOC)
staggered obstacles
flanking obstacles
installation of obstacles
granite post obstacles
maintain obstacles
reduce obstacles
obstacles in depth
passage of obstacles
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)
air defense zone
air defense zone commander
air exclusion zone
area of separation (=buffer zone)
assault dropping zone
buffer zone / area of separation
cold zone (CBRN)
combat zone
communications zone (COMMZ)