природне маскування
natural and man-made
natural disaster
natural features
natural forward position
natural obstacle
natural respiratory pause
natural background radiation
natural dangerous factors
develop a natural obstacle
surveillance by natural vision
compressed natural gas (fuel) (CNG)
artificial concealment
concealment
concealment and deception
deliberate concealment
mobile concealment
overhead concealment
cover and concealment
observation and fields of fire, avenues of approach, key and decisive terrain,obstacles, and cover and concealment (OAKOC)
radar target concealment
area of concealment
joint concealment centre
gain concealment
concealment and subterfuge